Company lists · Data refreshed November 2026
Top 25 Lab grown diamond processors worldwide
RevenueBase identified 2,256 company matches for lab grown diamond processors worldwide as of November 2026 and tracks 26,920 professional contacts across them, including 4,290 with verified work emails. India is the largest market and Surat the largest hub.
This list covers company matches for lab grown diamond processors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for lab grown diamond processors follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest lab grown diamond processors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,228 contacts → | ||||
Exact match “Petra Diamonds is a leading independent diamond mining group and a consistent supplier of gem quality rough diamonds to the international market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,109 contacts → | ||||
Exact match “KIRAN GEMS is the World’s Largest Manufacturer of Natural Diamonds and India’s Premier Diamantaire, establishing benchmarks not just for sheer scale of operations, but also for…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 901 contacts → | ||||
Exact match “At Hari Krishna Exports, we are a global leader in the natural diamond industry, powered by a purpose that goes beyond our stones.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 418 contacts → | ||||
Exact match “Dharmanandan Diamonds, widely known as DDPL is a prominent natural diamond manufacturing company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 385 contacts → | ||||
Exact match “IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 360 contacts → | ||||
Exact match “Established in 1966, Jewelex Group is a leading diamond and jewellery manufacturer, with a strong distribution to retailers across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 349 contacts → | ||||
Exact match “Founded in San Francisco in 2013, we have grown into the #1 producer of single-crystal diamond globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 318 contacts → | ||||
Exact match “Burgundy Diamond Mines Limited is a premier global diamond company that proudly produces and delivers ethically sourced diamonds from its world-renowned Ekati Diamond Mine in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 284 contacts → | ||||
Exact match “Founded in 1996 with a mission to delight customers with exceptional products and superior service, Kama Jewelry has firmly established itself among the top ten diamond jewelry…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 262 contacts → | ||||
Exact match “OUR HERITAGE: The Asian Star group represents a rich heritage of values, skills and experience, amassed over five decades in the diamond industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 260 contacts → | ||||
Exact match “HRD Antwerp is the leading authority when it comes to Diamond Grading, Jewellery Grading and Education.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 257 contacts → | ||||
Exact match “Established in 1972, Laxmi Diamond is one of the leading diamond manufacturers, with its footprints spread across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 252 contacts → | ||||
Exact match “Since 1988, Sarine Technologies has been the leading technology company in the worldwide diamond domain, providing multi-disciplinary products based on cutting-edge technology to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 243 contacts → | ||||
Exact match “Established in 1962, Goldstar is a trusted name in the diamond and jewellery industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 210 contacts → | ||||
Exact match “The Rapaport Group is an international network of companies providing first class, added value services that support the development of free, fair, efficient and competitive…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 208 contacts → | ||||
Exact match “Dimexon Diamonds Ltd, with sales offices in all 4 corners of the globe, is one of the world’s leading diamond manufacturers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 197 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 194 contacts → | ||||
Exact match “Founded in 2016 by a former BCG consultant frustrated with his own engagement ring buying experience, Rare Carat began with a mission to make diamond buying more transparent for…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 185 contacts → | ||||
Exact match “K.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 175 contacts → | ||||
Exact match “Limelight Lab Grown Diamonds Ltd India’s leading sustainable diamond luxury brand offering lab grown diamond studded jewellery.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 172 contacts → | ||||
Exact match “Founded in 1979, NIRU is infused with a family spirit and a passionate commitment to creating a positive impact on people and planet.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 161 contacts → | ||||
Exact match “Gemological Science International (GSI) is one of the largest gemological laboratories with 13 offices in the United States, India, UAE, Hong Kong and Thailand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 161 contacts → | ||||
Exact match “Blue Diamond, 2004 yılında toptancı bir firma olarak, mücevher sektörüne pırlanta tedarik etmek ve sektörü pırlanta konusunda eğitmek amacıyla kuruldu.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 143 contacts → | ||||
Exact match “Shivam Jewels is a natural diamond manufacturer built on 30 years of precision and consistency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 137 contacts → | ||||
Exact match “We make special occasion jewellery that everyone can feel good about.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “lab grown diamond processors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,256 lab grown diamond processors worldwide
See the full list, filter by size, metro and specialty, and access 4,290 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Lab grown diamond processors worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for lab grown diamond processors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “lab grown diamond processors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 4,290 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Lab grown diamond processors by location
16 lists · largest firstEvery Lab grown diamond processors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Lab grown diamond processors based in India715
- Lab grown diamond processors based in the United States406
- Lab grown diamond processors based in Belgium85
- Lab grown diamond processors based in the United Kingdom70
- Lab grown diamond processors based in Hong Kong59
- Lab grown diamond processors based in the United Arab Emirates56
- Lab grown diamond processors based in Israel47
- Lab grown diamond processors based in Canada39
- Lab grown diamond processors based in Australia33
Cities
- Lab grown diamond processors based in Surat, India261
- Lab grown diamond processors based in Mumbai, India215
- Lab grown diamond processors based in New York, United States185
- Lab grown diamond processors based in Antwerp, Belgium61
- Lab grown diamond processors based in London, United Kingdom37
- Lab grown diamond processors based in Ramat Gan, Israel34
- Lab grown diamond processors based in Los Angeles, United States27
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “lab grown diamond processors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many lab grown diamond processors are there worldwide?
RevenueBase identified 2,256 company matches for lab grown diamond processors worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Petra Diamonds tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most lab grown diamond processors?
India leads with 715 companies, followed by the United States (406) and Belgium (85). Every lab grown diamond processors list by country and city is linked on this page.
Which city has the most lab grown diamond processors?
Surat leads with 262 company records, followed by Mumbai (216) and New York (186).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,290 professional contacts with verified work emails tracked across these 2,256 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,256 lab grown diamond processors worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 lab grown diamond processors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,256 matching company records for lab grown diamond processors worldwide, with 26,920 tracked contacts and 4,290 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 lab grown diamond processors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Petra Diamondspetradiamonds.comHQ: St. Helier, JerseyReported employees: 5,001-10,000 | St. Helier, Jersey | 5,001-10,000 | Exact match | 1,228 contacts → |
“Petra Diamonds is a leading independent diamond mining group and a consistent supplier of gem quality rough diamonds to the international market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Kiran Gems Private Limitedkirangems.comHQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 1,109 contacts → |
“KIRAN GEMS is the World’s Largest Manufacturer of Natural Diamonds and India’s Premier Diamantaire, establishing benchmarks not just for sheer scale of operations, but also for…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 901 contacts → |
“At Hari Krishna Exports, we are a global leader in the natural diamond industry, powered by a purpose that goes beyond our stones.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Dharmanandan Diamonds Pvt. LTDddpl.comHQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 418 contacts → |
“Dharmanandan Diamonds, widely known as DDPL is a prominent natural diamond manufacturing company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: New York, CA, United StatesReported employees: 501-1,000 | New York, CA, United States | 501-1,000 | Exact match | 385 contacts → |
“IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Jewelex Groupjewelexgroup.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 360 contacts → |
“Established in 1966, Jewelex Group is a leading diamond and jewellery manufacturer, with a strong distribution to retailers across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Diamond Foundrydf.comHQ: San Francisco, United StatesReported employees: 501-1,000 | San Francisco, United States | 501-1,000 | Exact match | 349 contacts → |
“Founded in San Francisco in 2013, we have grown into the #1 producer of single-crystal diamond globally.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Burgundy Diamond Minesburgundydiamonds.comHQ: Calgary, AB, CanadaReported employees: 1,001-5,000 | Calgary, AB, Canada | 1,001-5,000 | Exact match | 318 contacts → |
“Burgundy Diamond Mines Limited is a premier global diamond company that proudly produces and delivers ethically sourced diamonds from its world-renowned Ekati Diamond Mine in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Kama Jewelrykamajewelry.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 284 contacts → |
“Founded in 1996 with a mission to delight customers with exceptional products and superior service, Kama Jewelry has firmly established itself among the top ten diamond jewelry…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Asian Star Company Limitedasianstargroup.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 262 contacts → |
“OUR HERITAGE: The Asian Star group represents a rich heritage of values, skills and experience, amassed over five decades in the diamond industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  HRD Antwerphrdantwerp.comHQ: Antwerp, BelgiumReported employees: 201-500 | Antwerp, Belgium | 201-500 | Exact match | 260 contacts → |
“HRD Antwerp is the leading authority when it comes to Diamond Grading, Jewellery Grading and Education.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Laxmi Diamond Pvt. LTDlaxmidiamond.comHQ: Surat, IndiaReported employees: 5,001-10,000 | Surat, India | 5,001-10,000 | Exact match | 257 contacts → |
“Established in 1972, Laxmi Diamond is one of the leading diamond manufacturers, with its footprints spread across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Sarine Technologiessarine.comHQ: Hod Hasharon, IsraelReported employees: 501-1,000 | Hod Hasharon, Israel | 501-1,000 | Exact match | 252 contacts → |
“Since 1988, Sarine Technologies has been the leading technology company in the worldwide diamond domain, providing multi-disciplinary products based on cutting-edge technology to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Goldstar Jewellerygoldstarjewellery.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 243 contacts → |
“Established in 1962, Goldstar is a trusted name in the diamond and jewellery industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Rapaportrapaport.comHQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 210 contacts → |
“The Rapaport Group is an international network of companies providing first class, added value services that support the development of free, fair, efficient and competitive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Dimexon Diamondsdimexon.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 208 contacts → |
“Dimexon Diamonds Ltd, with sales offices in all 4 corners of the globe, is one of the world’s leading diamond manufacturers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Mullermuller.be HQ: Zoutleeuw, BelgiumReported employees: 1,001-5,000 | Zoutleeuw, Belgium | 1,001-5,000 | Exact match | 197 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 |  Rare Caratrarecarat.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 194 contacts → |
“Founded in 2016 by a former BCG consultant frustrated with his own engagement ring buying experience, Rare Carat began with a mission to make diamond buying more transparent for…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  K. Girdharlal International LTDkgirdharlal.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 185 contacts → |
“K.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Limelight LAB Grown Diamondslimelightdiamonds.comHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 175 contacts → |
“Limelight Lab Grown Diamonds Ltd India’s leading sustainable diamond luxury brand offering lab grown diamond studded jewellery.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Niru Groupnirugroup.comHQ: Plan-les-ouates, SwitzerlandReported employees: 1,001-5,000 | Plan-les-ouates, Switzerland | 1,001-5,000 | Exact match | 172 contacts → |
“Founded in 1979, NIRU is infused with a family spirit and a passionate commitment to creating a positive impact on people and planet.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Gemological Science International GSIgemscience.netHQ: Manhattan, United StatesReported employees: 51-200 | Manhattan, United States | 51-200 | Exact match | 161 contacts → |
“Gemological Science International (GSI) is one of the largest gemological laboratories with 13 offices in the United States, India, UAE, Hong Kong and Thailand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Blue Diamondbluediamond.com.trHQ: İstanbul, TürkiyeReported employees: 1,001-5,000 | İstanbul, Türkiye | 1,001-5,000 | Exact match | 161 contacts → |
“Blue Diamond, 2004 yılında toptancı bir firma olarak, mücevher sektörüne pırlanta tedarik etmek ve sektörü pırlanta konusunda eğitmek amacıyla kuruldu.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Shivam Jewelssj.worldHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 143 contacts → |
“Shivam Jewels is a natural diamond manufacturer built on 30 years of precision and consistency.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Cullen Jewellerycullenjewellery.comHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 137 contacts → |
“We make special occasion jewellery that everyone can feel good about.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,256 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Lab grown diamond processors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,234 records in the displayed employee bands.
22 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,256 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Lab grown diamond processors by location
16 lists · largest firstEvery Lab grown diamond processors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Lab grown diamond processors based in India715
- Lab grown diamond processors based in the United States406
- Lab grown diamond processors based in Belgium85
- Lab grown diamond processors based in the United Kingdom70
- Lab grown diamond processors based in Hong Kong59
- Lab grown diamond processors based in the United Arab Emirates56
- Lab grown diamond processors based in Israel47
- Lab grown diamond processors based in Canada39
- Lab grown diamond processors based in Australia33
Cities
- Lab grown diamond processors based in Surat, India261
- Lab grown diamond processors based in Mumbai, India215
- Lab grown diamond processors based in New York, United States185
- Lab grown diamond processors based in Antwerp, Belgium61
- Lab grown diamond processors based in London, United Kingdom37
- Lab grown diamond processors based in Ramat Gan, Israel34
- Lab grown diamond processors based in Los Angeles, United States27
Questions about this company list
What does Exact match mean for lab grown diamond processors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many lab grown diamond processors did RevenueBase find worldwide?
The saved snapshot records 2,256 matching company records, 26,920 tracked contacts and 4,290 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 lab grown diamond processors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/lab-grown-diamond-processors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 lab grown diamond processors worldwide
RevenueBase records 2,256 matching company records for lab grown diamond processors worldwide, with 26,920 tracked contacts and 4,290 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 lab grown diamond processors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Petra Diamondspetradiamonds.com HQ: St. Helier, JerseyReported employees: 5,001-10,000 | St. Helier, Jersey | 5,001-10,000 | Exact match | 1,228 contacts → |
“Petra Diamonds is a leading independent diamond mining group and a consistent supplier of gem quality rough diamonds to the international market.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Kiran Gems Private Limitedkirangems.com HQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 1,109 contacts → |
“KIRAN GEMS is the World’s Largest Manufacturer of Natural Diamonds and India’s Premier Diamantaire, establishing benchmarks not just for sheer scale of operations, but also for…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 901 contacts → |
“At Hari Krishna Exports, we are a global leader in the natural diamond industry, powered by a purpose that goes beyond our stones.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Dharmanandan Diamonds Pvt. LTDddpl.com HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 418 contacts → |
“Dharmanandan Diamonds, widely known as DDPL is a prominent natural diamond manufacturing company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: New York, CA, United StatesReported employees: 501-1,000 | New York, CA, United States | 501-1,000 | Exact match | 385 contacts → |
“IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Jewelex Groupjewelexgroup.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 360 contacts → |
“Established in 1966, Jewelex Group is a leading diamond and jewellery manufacturer, with a strong distribution to retailers across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Diamond Foundrydf.com HQ: San Francisco, United StatesReported employees: 501-1,000 | San Francisco, United States | 501-1,000 | Exact match | 349 contacts → |
“Founded in San Francisco in 2013, we have grown into the #1 producer of single-crystal diamond globally.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Burgundy Diamond Minesburgundydiamonds.com HQ: Calgary, AB, CanadaReported employees: 1,001-5,000 | Calgary, AB, Canada | 1,001-5,000 | Exact match | 318 contacts → |
“Burgundy Diamond Mines Limited is a premier global diamond company that proudly produces and delivers ethically sourced diamonds from its world-renowned Ekati Diamond Mine in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Kama Jewelrykamajewelry.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 284 contacts → |
“Founded in 1996 with a mission to delight customers with exceptional products and superior service, Kama Jewelry has firmly established itself among the top ten diamond jewelry…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Asian Star Company Limitedasianstargroup.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 262 contacts → |
“OUR HERITAGE: The Asian Star group represents a rich heritage of values, skills and experience, amassed over five decades in the diamond industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HRD Antwerphrdantwerp.com HQ: Antwerp, BelgiumReported employees: 201-500 | Antwerp, Belgium | 201-500 | Exact match | 260 contacts → |
“HRD Antwerp is the leading authority when it comes to Diamond Grading, Jewellery Grading and Education.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Laxmi Diamond Pvt. LTDlaxmidiamond.com HQ: Surat, IndiaReported employees: 5,001-10,000 | Surat, India | 5,001-10,000 | Exact match | 257 contacts → |
“Established in 1972, Laxmi Diamond is one of the leading diamond manufacturers, with its footprints spread across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Sarine Technologiessarine.com HQ: Hod Hasharon, IsraelReported employees: 501-1,000 | Hod Hasharon, Israel | 501-1,000 | Exact match | 252 contacts → |
“Since 1988, Sarine Technologies has been the leading technology company in the worldwide diamond domain, providing multi-disciplinary products based on cutting-edge technology to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Goldstar Jewellerygoldstarjewellery.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 243 contacts → |
“Established in 1962, Goldstar is a trusted name in the diamond and jewellery industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Rapaportrapaport.com HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 210 contacts → |
“The Rapaport Group is an international network of companies providing first class, added value services that support the development of free, fair, efficient and competitive…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Dimexon Diamondsdimexon.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 208 contacts → |
“Dimexon Diamonds Ltd, with sales offices in all 4 corners of the globe, is one of the world’s leading diamond manufacturers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Mullermuller.be HQ: Zoutleeuw, BelgiumReported employees: 1,001-5,000 | Zoutleeuw, Belgium | 1,001-5,000 | Exact match | 197 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Rare Caratrarecarat.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 194 contacts → |
“Founded in 2016 by a former BCG consultant frustrated with his own engagement ring buying experience, Rare Carat began with a mission to make diamond buying more transparent for…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | K. Girdharlal International LTDkgirdharlal.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 185 contacts → |
“K.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Limelight LAB Grown Diamondslimelightdiamonds.com HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 175 contacts → |
“Limelight Lab Grown Diamonds Ltd India’s leading sustainable diamond luxury brand offering lab grown diamond studded jewellery.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Niru Groupnirugroup.com HQ: Plan-les-ouates, SwitzerlandReported employees: 1,001-5,000 | Plan-les-ouates, Switzerland | 1,001-5,000 | Exact match | 172 contacts → |
“Founded in 1979, NIRU is infused with a family spirit and a passionate commitment to creating a positive impact on people and planet.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Gemological Science International GSIgemscience.net HQ: Manhattan, United StatesReported employees: 51-200 | Manhattan, United States | 51-200 | Exact match | 161 contacts → |
“Gemological Science International (GSI) is one of the largest gemological laboratories with 13 offices in the United States, India, UAE, Hong Kong and Thailand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Blue Diamondbluediamond.com.tr HQ: İstanbul, TürkiyeReported employees: 1,001-5,000 | İstanbul, Türkiye | 1,001-5,000 | Exact match | 161 contacts → |
“Blue Diamond, 2004 yılında toptancı bir firma olarak, mücevher sektörüne pırlanta tedarik etmek ve sektörü pırlanta konusunda eğitmek amacıyla kuruldu.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Shivam Jewelssj.world HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 143 contacts → |
“Shivam Jewels is a natural diamond manufacturer built on 30 years of precision and consistency.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Cullen Jewellerycullenjewellery.com HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 137 contacts → |
“We make special occasion jewellery that everyone can feel good about.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,256 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Lab grown diamond processors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,234 records in the displayed employee bands.
22 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,256 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Lab grown diamond processors by location
16 lists · largest firstEvery Lab grown diamond processors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Lab grown diamond processors based in India715
- Lab grown diamond processors based in the United States406
- Lab grown diamond processors based in Belgium85
- Lab grown diamond processors based in the United Kingdom70
- Lab grown diamond processors based in Hong Kong59
- Lab grown diamond processors based in the United Arab Emirates56
- Lab grown diamond processors based in Israel47
- Lab grown diamond processors based in Canada39
- Lab grown diamond processors based in Australia33
Cities
- Lab grown diamond processors based in Surat, India261
- Lab grown diamond processors based in Mumbai, India215
- Lab grown diamond processors based in New York, United States185
- Lab grown diamond processors based in Antwerp, Belgium61
- Lab grown diamond processors based in London, United Kingdom37
- Lab grown diamond processors based in Ramat Gan, Israel34
- Lab grown diamond processors based in Los Angeles, United States27
Questions about this company list
What does Exact match mean for lab grown diamond processors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many lab grown diamond processors did RevenueBase find worldwide?
The saved snapshot records 2,256 matching company records, 26,920 tracked contacts and 4,290 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 lab grown diamond processors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/lab-grown-diamond-processors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗