Company lists · Data refreshed November 2026
Top 25 Diamond grading laboratories based in India
RevenueBase identified 388 company matches for diamond grading laboratories associated with India as of November 2026 and tracks 5,456 professional contacts across them, including 640 with verified work emails. Surat is the largest hub.
This list covers company matches for diamond grading laboratories associated with India, 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.
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 diamond grading laboratories based in India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 285 contacts → | ||||
Exact match “The International Gemological Institute (IGI), a Blackstone portfolio company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 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 | |||||
| 5 | 110 contacts → | ||||
Exact match “To join our family, fill this form for us to know you better - https://forms.gle/mMD8d1hP3NHWJmr59 Founded by brothers Mr.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 97 contacts → | ||||
Exact match “Star Rays is a diamond manufacturer who are passionate about their products and solely focused on the diamond industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 89 contacts → | ||||
Exact match “The Shairu Gems Diamonds Group is one of India’s leading polished diamond suppliers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 76 contacts → | ||||
Exact match “Divine Solitaires is the first & only loose solitaire brand in India which provides its consumer with the world’s finest & perfectly crafted solitaire diamonds in an organized &…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 75 contacts → | ||||
Exact match “The Blue Star Diamonds group was established in Mumbai by Vasantlal Mehta in 1966.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 75 contacts → | ||||
Exact match “Welcome to The Solitario - Elevate Your Elegance with Diamonds At The Solitario Lab Grown Diamonds, we're in the business of crafting dreams and turning moments into cherished…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 71 contacts → | ||||
Exact match “Greenlab Diamonds is the world’s largest lab-grown Diamond Cultivator.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 65 contacts → | ||||
Exact match “Gurukrupa Export Private Limited is a leading diamond manufacturer in South India, established in 1997.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 52 contacts → | ||||
Exact match “Established in 21st Century,"SNJ DIAM" is a fast-growing Diamond Processing Company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 51 contacts → | ||||
Exact match “Welcome to Paladiya Brothers & Co, we pride ourselves on being a trusted name in the diamond industry, offering exceptional quality and unparalleled service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 42 contacts → | ||||
Exact match “It all started in 1989 with small unit of manufacturing in Surat (INDIA) having only one passion in mind to produce finest quality of diamonds and supply to the World.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 40 contacts → | ||||
Exact match “Welcome to Mira Gems, a leading lab-grown diamond company dedicated to providing sustainable, ethical, and exquisite diamonds.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 39 contacts → | ||||
Exact match “Welcome to the world of KOHIRA, where innovation meets craftsmanship.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 35 contacts → | ||||
Exact match “Fiona, is India's first lab grown diamond brand.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 35 contacts → | ||||
Exact match “With an unwavering commitment to environmental preservation, Sonani Jewels embrace the art of growing exquisite diamonds that embody both eco-friendliness and ethical integrity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 34 contacts → | ||||
Exact match “Welcome to Firefly Diamonds, where brilliance meets sustainability!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 28 contacts → | ||||
Exact match “Grower-Manufacturer-Exporter Lab-Grown Diamonds” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 26 contacts → | ||||
Exact match “Diamond and Jewelries processing machines Manufacturer and exporter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 25 contacts → | ||||
Exact match “A company dedicated to supplying the highest grade polished diamonds Since its inception, RED EXIM has expanded to become a globally trusted partner for supplying well-made round…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 25 contacts → | ||||
Exact match “Svaraa jewels; being the Pioneer of lab-grown diamond jewellery in the entire nation, Svaraa mainly focuses on providing an exemplary holistic jewellery experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 24 contacts → | ||||
Exact match “Established in 1996, Finestar Jewellery & Diamond Pvt ltd is a Diamond Manufacturing Company.” 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 “diamond grading laboratories”. 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 388 diamond grading laboratories based in India
See the full list, filter by size, metro and specialty, and access 640 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Diamond grading laboratories based in India at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 388 companies.
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.
- What qualifies
- Company records associated with India whose business descriptions match “diamond grading laboratories” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 640 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.
Diamond grading laboratories by metro
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 “diamond grading laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many diamond grading laboratories are there based in India?
RevenueBase identified 388 company matches for diamond grading laboratories associated with India 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?
Kiran Gems Private Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most diamond grading laboratories?
Surat leads with 146 company records, followed by Mumbai (113) and Bandra East Mumbai (16).
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 640 professional contacts with verified work emails tracked across these 388 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 388 diamond grading laboratories based in India. Start with a free account, no credit card.
Download this list →Related lists
Diamond grading laboratories by geography
- Diamond grading laboratories based in Antwerp, Belgium
- Diamond grading laboratories based in Mumbai, India
- Diamond grading laboratories based in Surat, India
- Diamond grading laboratories based in New York, United States
- Diamond grading laboratories based in Australia
- Diamond grading laboratories based in Belgium
- Diamond grading laboratories based in Hong Kong
- Diamond grading laboratories based in the United States
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Diamond grading laboratories based in Antwerp, Belgium
- Diamond grading laboratories based in Mumbai, India
- Diamond grading laboratories based in Surat, India
- Diamond grading laboratories based in New York, United States
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Company intelligence · public preview
Top 25 diamond grading laboratories based in India
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 388 matching company records for diamond grading laboratories based in India, with 5,456 tracked contacts and 640 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 diamond grading laboratories based in India
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 |  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. | |||||
| 2 |  IGIigi.orgHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 285 contacts → |
“The International Gemological Institute (IGI), a Blackstone portfolio company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  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. | |||||
| 5 |  Venus Jewelvenusjewel.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 110 contacts → |
“To join our family, fill this form for us to know you better - https://forms.gle/mMD8d1hP3NHWJmr59 Founded by brothers Mr.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Star Raysstarrays.comHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 97 contacts → |
“Star Rays is a diamond manufacturer who are passionate about their products and solely focused on the diamond industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Shairu Gems Diamonds Private Limitedshairugems.netHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 89 contacts → |
“The Shairu Gems Diamonds Group is one of India’s leading polished diamond suppliers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Divine Solitairesdivinesolitaires.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 76 contacts → |
“Divine Solitaires is the first & only loose solitaire brand in India which provides its consumer with the world’s finest & perfectly crafted solitaire diamonds in an organized &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Blue Star Diamonds Pvt. LTDbluestardiamonds.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 75 contacts → |
“The Blue Star Diamonds group was established in Mumbai by Vasantlal Mehta in 1966.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Solitario LAB Grown Limitedthesolitario.comHQ: Pune, IndiaReported employees: 201-500 | Pune, India | 201-500 | Exact match | 75 contacts → |
“Welcome to The Solitario - Elevate Your Elegance with Diamonds At The Solitario Lab Grown Diamonds, we're in the business of crafting dreams and turning moments into cherished…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Greenlab Diamondsgreenlab.diamondsHQ: Surat, IndiaReported employees: 1,001-5,000 | Surat, India | 1,001-5,000 | Exact match | 71 contacts → |
“Greenlab Diamonds is the world’s largest lab-grown Diamond Cultivator.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Gurukrupa Exportgkexport.comHQ: Surat, IndiaReported employees: 1,001-5,000 | Surat, India | 1,001-5,000 | Exact match | 65 contacts → |
“Gurukrupa Export Private Limited is a leading diamond manufacturer in South India, established in 1997.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Snjdiamsnjdiam.comHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 52 contacts → |
“Established in 21st Century,"SNJ DIAM" is a fast-growing Diamond Processing Company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Paladiya Brotherspb.diamondsHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 51 contacts → |
“Welcome to Paladiya Brothers & Co, we pride ourselves on being a trusted name in the diamond industry, offering exceptional quality and unparalleled service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Narola Diamondsnarola.inHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 42 contacts → |
“It all started in 1989 with small unit of manufacturing in Surat (INDIA) having only one passion in mind to produce finest quality of diamonds and supply to the World.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Mira Gemsmiragems.comHQ: Surat, IndiaReported employees: 501-1,000 | Surat, India | 501-1,000 | Exact match | 40 contacts → |
“Welcome to Mira Gems, a leading lab-grown diamond company dedicated to providing sustainable, ethical, and exquisite diamonds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Kohirakohira.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 39 contacts → |
“Welcome to the world of KOHIRA, where innovation meets craftsmanship.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Fiona Diamondsfionadiamonds.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 35 contacts → |
“Fiona, is India's first lab grown diamond brand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sonani Jewelssonanijewels.comHQ: Surat, IndiaReported employees: 201-500 | Surat, India | 201-500 | Exact match | 35 contacts → |
“With an unwavering commitment to environmental preservation, Sonani Jewels embrace the art of growing exquisite diamonds that embody both eco-friendliness and ethical integrity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Firefly Diamondsfireflydiamonds.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 34 contacts → |
“Welcome to Firefly Diamonds, where brilliance meets sustainability!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Real Illusion LLPrealillusion.inHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 28 contacts → |
“Grower-Manufacturer-Exporter Lab-Grown Diamonds” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Lexus Softmaclexusindia.inHQ: Surat, IndiaReported employees: 51-200 | Surat, India | 51-200 | Exact match | 26 contacts → |
“Diamond and Jewelries processing machines Manufacturer and exporter.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  RED Exim Groupredexim.co.inHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 25 contacts → |
“A company dedicated to supplying the highest grade polished diamonds Since its inception, RED EXIM has expanded to become a globally trusted partner for supplying well-made round…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Svaraa Jewelssvaraa.comHQ: Surat, IndiaReported employees: 11-50 | Surat, India | 11-50 | Exact match | 25 contacts → |
“Svaraa jewels; being the Pioneer of lab-grown diamond jewellery in the entire nation, Svaraa mainly focuses on providing an exemplary holistic jewellery experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Finestar Jewellery & Diamond Pvt,ltdfinestardiamonds.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 24 contacts → |
“Established in 1996, Finestar Jewellery & Diamond Pvt ltd is a Diamond Manufacturing Company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 388 company matches
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Diamond grading laboratories: 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
385 records in the displayed employee bands.
3 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 worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 388 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 ↗
Diamond grading laboratories by metro
Questions about this company list
What does Exact match mean for diamond grading laboratories?
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 diamond grading laboratories did RevenueBase find based in India?
The saved snapshot records 388 matching company records, 5,456 tracked contacts and 640 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
Diamond grading laboratories by geography
- Diamond grading laboratories based in Antwerp, Belgium
- Diamond grading laboratories based in Mumbai, India
- Diamond grading laboratories based in Surat, India
- Diamond grading laboratories based in New York, United States
- Diamond grading laboratories based in Australia
- Diamond grading laboratories based in Belgium
- Diamond grading laboratories based in Hong Kong
- Diamond grading laboratories based in the United States
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 diamond grading laboratories based in India. Snapshot: November 6, 2026. https://revenuebase.ai/companies/diamond-grading-laboratories/india.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
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- New lists
- Diamond grading laboratories based in Antwerp, Belgium
- Diamond grading laboratories based in Mumbai, India
- Diamond grading laboratories based in Surat, India
- Diamond grading laboratories based in New York, United States
- Diamond grading laboratories based in Australia
- Diamond grading laboratories based in Belgium
Company intelligence · public preview
Top 25 diamond grading laboratories based in India
RevenueBase records 388 matching company records for diamond grading laboratories based in India, with 5,456 tracked contacts and 640 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 diamond grading laboratories based in India
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 | 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. | |||||
| 2 | IGIigi.org HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 285 contacts → |
“The International Gemological Institute (IGI), a Blackstone portfolio company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | Venus Jewelvenusjewel.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 110 contacts → |
“To join our family, fill this form for us to know you better - https://forms.gle/mMD8d1hP3NHWJmr59 Founded by brothers Mr.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Star Raysstarrays.com HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 97 contacts → |
“Star Rays is a diamond manufacturer who are passionate about their products and solely focused on the diamond industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Shairu Gems Diamonds Private Limitedshairugems.net HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 89 contacts → |
“The Shairu Gems Diamonds Group is one of India’s leading polished diamond suppliers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Divine Solitairesdivinesolitaires.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 76 contacts → |
“Divine Solitaires is the first & only loose solitaire brand in India which provides its consumer with the world’s finest & perfectly crafted solitaire diamonds in an organized &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Blue Star Diamonds Pvt. LTDbluestardiamonds.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 75 contacts → |
“The Blue Star Diamonds group was established in Mumbai by Vasantlal Mehta in 1966.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Solitario LAB Grown Limitedthesolitario.com HQ: Pune, IndiaReported employees: 201-500 | Pune, India | 201-500 | Exact match | 75 contacts → |
“Welcome to The Solitario - Elevate Your Elegance with Diamonds At The Solitario Lab Grown Diamonds, we're in the business of crafting dreams and turning moments into cherished…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Greenlab Diamondsgreenlab.diamonds HQ: Surat, IndiaReported employees: 1,001-5,000 | Surat, India | 1,001-5,000 | Exact match | 71 contacts → |
“Greenlab Diamonds is the world’s largest lab-grown Diamond Cultivator.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Gurukrupa Exportgkexport.com HQ: Surat, IndiaReported employees: 1,001-5,000 | Surat, India | 1,001-5,000 | Exact match | 65 contacts → |
“Gurukrupa Export Private Limited is a leading diamond manufacturer in South India, established in 1997.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Snjdiamsnjdiam.com HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 52 contacts → |
“Established in 21st Century,"SNJ DIAM" is a fast-growing Diamond Processing Company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Paladiya Brotherspb.diamonds HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 51 contacts → |
“Welcome to Paladiya Brothers & Co, we pride ourselves on being a trusted name in the diamond industry, offering exceptional quality and unparalleled service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Narola Diamondsnarola.in HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 42 contacts → |
“It all started in 1989 with small unit of manufacturing in Surat (INDIA) having only one passion in mind to produce finest quality of diamonds and supply to the World.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Mira Gemsmiragems.com HQ: Surat, IndiaReported employees: 501-1,000 | Surat, India | 501-1,000 | Exact match | 40 contacts → |
“Welcome to Mira Gems, a leading lab-grown diamond company dedicated to providing sustainable, ethical, and exquisite diamonds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kohirakohira.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 39 contacts → |
“Welcome to the world of KOHIRA, where innovation meets craftsmanship.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Fiona Diamondsfionadiamonds.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 35 contacts → |
“Fiona, is India's first lab grown diamond brand.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sonani Jewelssonanijewels.com HQ: Surat, IndiaReported employees: 201-500 | Surat, India | 201-500 | Exact match | 35 contacts → |
“With an unwavering commitment to environmental preservation, Sonani Jewels embrace the art of growing exquisite diamonds that embody both eco-friendliness and ethical integrity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Firefly Diamondsfireflydiamonds.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 34 contacts → |
“Welcome to Firefly Diamonds, where brilliance meets sustainability!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Real Illusion LLPrealillusion.in HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 28 contacts → |
“Grower-Manufacturer-Exporter Lab-Grown Diamonds” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Lexus Softmaclexusindia.in HQ: Surat, IndiaReported employees: 51-200 | Surat, India | 51-200 | Exact match | 26 contacts → |
“Diamond and Jewelries processing machines Manufacturer and exporter.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | RED Exim Groupredexim.co.in HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 25 contacts → |
“A company dedicated to supplying the highest grade polished diamonds Since its inception, RED EXIM has expanded to become a globally trusted partner for supplying well-made round…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Svaraa Jewelssvaraa.com HQ: Surat, IndiaReported employees: 11-50 | Surat, India | 11-50 | Exact match | 25 contacts → |
“Svaraa jewels; being the Pioneer of lab-grown diamond jewellery in the entire nation, Svaraa mainly focuses on providing an exemplary holistic jewellery experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Finestar Jewellery & Diamond Pvt,ltdfinestardiamonds.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 24 contacts → |
“Established in 1996, Finestar Jewellery & Diamond Pvt ltd is a Diamond Manufacturing Company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 388 company matches
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Diamond grading laboratories: 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
385 records in the displayed employee bands.
3 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 worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 388 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 ↗
Diamond grading laboratories by metro
Questions about this company list
What does Exact match mean for diamond grading laboratories?
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 diamond grading laboratories did RevenueBase find based in India?
The saved snapshot records 388 matching company records, 5,456 tracked contacts and 640 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.
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Cite this list
RevenueBase Data Team. Top 25 diamond grading laboratories based in India. Snapshot: November 6, 2026. https://revenuebase.ai/companies/diamond-grading-laboratories/india.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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