Company lists · Data refreshed September 2026
Top 25 Diamond jewelry appraisers worldwide
RevenueBase identified 756 company matches for diamond jewelry appraisers worldwide as of September 2026 and tracks 4,113 professional contacts across them, including 946 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for diamond jewelry appraisers 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 September 19, 2026. Country and city lists for diamond jewelry appraisers 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 diamond jewelry appraisers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 394 contacts → | ||||
Exact match “IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 234 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 168 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 160 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 117 contacts → | ||||
Exact match “Founded in 1977, Tapper’s Jewelry is a family-owned business dedicated to providing jewelry and Fine Swiss timepieces to Metro Detroit.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 111 contacts → | ||||
Exact match “Founded by Keith Leclerc in 1981, International Diamond Center began as a jewelry wholesaler.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 102 contacts → | ||||
Exact match “Experto en peritajes de alhajas, obras de arte, inmuebles, etc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 60 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 33 contacts → | ||||
Exact match “Gunderson's believes in honesty, quality and reliability.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 30 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 26 contacts → | ||||
Exact match “The Estate Watch and Jewelry Co.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 24 contacts → | ||||
Exact match “Since 1975, our goal has been to earn the trust and satisfaction of our customers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 21 contacts → | ||||
Exact match “Welcome to Arthur's Jewelers!” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 20 contacts → | ||||
Exact match “Purveyors of the finest & rarest diamonds, designer jewelry & timepieces.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 19 contacts → | ||||
Exact match “Unique expertise, craftsmanship and passion for diamonds since 1997 has solidly positioned Hartmann's Fine Jewellery as a leading business within exclusive diamond jewelry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 19 contacts → | ||||
Exact match “Whether you're celebrating a job promotion, a big sale, a huge milestone, or "just because", Perry's is Charlotte's best spot for all of your luxury jewels and fine estate…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 19 contacts → | ||||
Exact match “The Tampa Bay Area's Only Independent Official Rolex jeweler.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 17 contacts → | ||||
Exact match “Outstanding Russian Cuts Diamonds Repair, Appraisal, Cad Cam Custom Design Large Bridal Collection” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 17 contacts → | ||||
Exact match “Independent Jewellers was found in 1937 by John H.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 17 contacts → | ||||
Exact match “Welcome Beyond79 is a community of committed jewelry professionals dedicated to the cultivation of passionate customers by delivering the ultimate online jewelry experience.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 17 contacts → | ||||
Exact match “Holloway Diamonds apply our founders’ Science of Sparkle.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 17 contacts → | ||||
Exact match “The Gem Collection is a full service jewelry store specializing in: Engagement & Bridal jewelry Special Occaision Jewelry Designer Jewelry Pandora Fine Diamond & Colored Stone…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 16 contacts → | ||||
Exact match “Genovese Jewelers has been one of the top St.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Nader Kash began as a New York City based diamond house offering GIA certified loose diamonds with exceptional makes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 16 contacts → | ||||
Exact match “At ZCOVA, we modernise the way consumers purchase Diamonds, Coloured Gemstones, and Jewellery.” Recorded in the RevenueBase company graph · Sep 19, 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 jewelry appraisers”. 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 756 diamond jewelry appraisers worldwide
See the full list, filter by size, metro and specialty, and access 946 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Diamond jewelry appraisers worldwide at a glance
As of Sep 19, 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 diamond jewelry appraisers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “diamond jewelry appraisers” 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 946 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 September 19, 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 jewelry appraisers by location
3 lists · largest firstEvery Diamond jewelry appraisers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 jewelry appraisers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many diamond jewelry appraisers are there worldwide?
RevenueBase identified 756 company matches for diamond jewelry appraisers worldwide as of September 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?
International Gemological Institute - USA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most diamond jewelry appraisers?
The United States leads with 388 companies, followed by the United Kingdom (39) and Canada (28). Every diamond jewelry appraisers list by country and city is linked on this page.
Which city has the most diamond jewelry appraisers?
New York leads with 36 company records, followed by London (15) and Los Angeles (10).
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 946 professional contacts with verified work emails tracked across these 756 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 September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 756 diamond jewelry appraisers worldwide. Start with a free account, no credit card.
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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 diamond jewelry appraisers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 756 matching company records for diamond jewelry appraisers worldwide, with 4,113 tracked contacts and 946 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: September 19, 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 jewelry appraisers 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 | HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 394 contacts → |
“IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HRD Antwerphrdantwerp.com HQ: Antwerp, BelgiumReported employees: 201-500 | Antwerp, Belgium | 201-500 | Exact match | 234 contacts → |
“HRD Antwerp is the leading authority when it comes to Diamond Grading, Jewellery Grading and Education.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Rare Caratrarecarat.comHQ: New York City, NY, United StatesReported employees: 51-200 | New York City, NY, United States | 51-200 | Exact match | 168 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Gemological Science International GSIgemscience.net HQ: Manhattan, United StatesReported employees: 51-200 | Manhattan, United States | 51-200 | Exact match | 160 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Tapper's Jewelrytappers.comHQ: West Bloomfield, MI, United StatesReported employees: 201-500 | West Bloomfield, MI, United States | 201-500 | Exact match | 117 contacts → |
“Founded in 1977, Tapper’s Jewelry is a family-owned business dedicated to providing jewelry and Fine Swiss timepieces to Metro Detroit.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  International Diamond Centershopidc.comHQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 111 contacts → |
“Founded by Keith Leclerc in 1981, International Diamond Center began as a jewelry wholesaler.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: ChileReported employees: 201-500 | Chile | 201-500 | Exact match | 102 contacts → |
“Experto en peritajes de alhajas, obras de arte, inmuebles, etc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Poddar Diamondspoddardiamonds.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 60 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 |  Gunderson's Jewelersgundersons.comHQ: Sioux City, IA, United StatesReported employees: 11-50 | Sioux City, IA, United States | 11-50 | Exact match | 33 contacts → |
“Gunderson's believes in honesty, quality and reliability.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Windsor Jewelers, INCwindsorjewelers.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 30 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  The Estate Watch And Jewelry Companywatchlink.comHQ: Scottsdale, AZ, United StatesReported employees: 1-10 | Scottsdale, AZ, United States | 1-10 | Exact match | 26 contacts → |
“The Estate Watch and Jewelry Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Kassab Jewelerskassabjewelers.com HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 24 contacts → |
“Since 1975, our goal has been to earn the trust and satisfaction of our customers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Arthur's Jewelersarthursjewelers.com HQ: Roseville, MN, United StatesReported employees: 11-50 | Roseville, MN, United States | 11-50 | Exact match | 21 contacts → |
“Welcome to Arthur's Jewelers!” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nagi Jewelersnagijewelers.com HQ: Stamford, CT, United StatesReported employees: 11-50 | Stamford, CT, United States | 11-50 | Exact match | 20 contacts → |
“Purveyors of the finest & rarest diamonds, designer jewelry & timepieces.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Hartmannshartmanns.comHQ: Indre By, DenmarkReported employees: 11-50 | Indre By, Denmark | 11-50 | Exact match | 19 contacts → |
“Unique expertise, craftsmanship and passion for diamonds since 1997 has solidly positioned Hartmann's Fine Jewellery as a leading business within exclusive diamond jewelry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Perry's Diamonds & Estate Jewelryperrysjewelry.comHQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 19 contacts → |
“Whether you're celebrating a job promotion, a big sale, a huge milestone, or "just because", Perry's is Charlotte's best spot for all of your luxury jewels and fine estate…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kiefer Jewelerskvjewels.com HQ: Lutz, United StatesReported employees: 11-50 | Lutz, United States | 11-50 | Exact match | 19 contacts → |
“The Tampa Bay Area's Only Independent Official Rolex jeweler.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Elizabeth Diamond Companyshopedc.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 17 contacts → |
“Outstanding Russian Cuts Diamonds Repair, Appraisal, Cad Cam Custom Design Large Bridal Collection” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Winnipeg, MB, CanadaReported employees: 11-50 | Winnipeg, MB, Canada | 11-50 | Exact match | 17 contacts → |
“Independent Jewellers was found in 1937 by John H.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Beyond79beyond79.comHQ: Boca Raton, FL, United StatesReported employees: 11-50 | Boca Raton, FL, United States | 11-50 | Exact match | 17 contacts → |
“Welcome Beyond79 is a community of committed jewelry professionals dedicated to the cultivation of passionate customers by delivering the ultimate online jewelry experience.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Holloway Diamondshollowaydiamonds.com.auHQ: Canterbury, United KingdomReported employees: 11-50 | Canterbury, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Holloway Diamonds apply our founders’ Science of Sparkle.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The GEM Collectiongemcollection.com HQ: Tallahassee, FL, United StatesReported employees: 11-50 | Tallahassee, FL, United States | 11-50 | Exact match | 17 contacts → |
“The Gem Collection is a full service jewelry store specializing in: Engagement & Bridal jewelry Special Occaision Jewelry Designer Jewelry Pandora Fine Diamond & Colored Stone…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Michael Genovese Jewelersgenovesejewelers.com HQ: Creve Coeur, MO, United StatesReported employees: 11-50 | Creve Coeur, MO, United States | 11-50 | Exact match | 16 contacts → |
“Genovese Jewelers has been one of the top St.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Nader Kashnaderkash.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 16 contacts → |
“Nader Kash began as a New York City based diamond house offering GIA certified loose diamonds with exceptional makes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ZCOVAzcova.com HQ: Petaling Jaya, MalaysiaReported employees: 1-10 | Petaling Jaya, Malaysia | 1-10 | Exact match | 16 contacts → |
“At ZCOVA, we modernise the way consumers purchase Diamonds, Coloured Gemstones, and Jewellery.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 756 company matches
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Diamond jewelry appraisers: dataset insights
September 19, 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
742 records in the displayed employee bands.
14 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 756 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: September 19, 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 jewelry appraisers by location
3 lists · largest firstEvery Diamond jewelry appraisers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for diamond jewelry appraisers?
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 jewelry appraisers did RevenueBase find worldwide?
The saved snapshot records 756 matching company records, 4,113 tracked contacts and 946 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: September 19, 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 diamond jewelry appraisers worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/diamond-jewelry-appraisers.
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 diamond jewelry appraisers worldwide
RevenueBase records 756 matching company records for diamond jewelry appraisers worldwide, with 4,113 tracked contacts and 946 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: September 19, 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 jewelry appraisers 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 | HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 394 contacts → |
“IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HRD Antwerphrdantwerp.com HQ: Antwerp, BelgiumReported employees: 201-500 | Antwerp, Belgium | 201-500 | Exact match | 234 contacts → |
“HRD Antwerp is the leading authority when it comes to Diamond Grading, Jewellery Grading and Education.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Rare Caratrarecarat.com HQ: New York City, NY, United StatesReported employees: 51-200 | New York City, NY, United States | 51-200 | Exact match | 168 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Gemological Science International GSIgemscience.net HQ: Manhattan, United StatesReported employees: 51-200 | Manhattan, United States | 51-200 | Exact match | 160 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tapper's Jewelrytappers.com HQ: West Bloomfield, MI, United StatesReported employees: 201-500 | West Bloomfield, MI, United States | 201-500 | Exact match | 117 contacts → |
“Founded in 1977, Tapper’s Jewelry is a family-owned business dedicated to providing jewelry and Fine Swiss timepieces to Metro Detroit.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | International Diamond Centershopidc.com HQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 111 contacts → |
“Founded by Keith Leclerc in 1981, International Diamond Center began as a jewelry wholesaler.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: ChileReported employees: 201-500 | Chile | 201-500 | Exact match | 102 contacts → |
“Experto en peritajes de alhajas, obras de arte, inmuebles, etc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Poddar Diamondspoddardiamonds.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 60 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | Gunderson's Jewelersgundersons.com HQ: Sioux City, IA, United StatesReported employees: 11-50 | Sioux City, IA, United States | 11-50 | Exact match | 33 contacts → |
“Gunderson's believes in honesty, quality and reliability.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Windsor Jewelers, INCwindsorjewelers.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 30 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | The Estate Watch And Jewelry Companywatchlink.com HQ: Scottsdale, AZ, United StatesReported employees: 1-10 | Scottsdale, AZ, United States | 1-10 | Exact match | 26 contacts → |
“The Estate Watch and Jewelry Co.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Kassab Jewelerskassabjewelers.com HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 24 contacts → |
“Since 1975, our goal has been to earn the trust and satisfaction of our customers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Arthur's Jewelersarthursjewelers.com HQ: Roseville, MN, United StatesReported employees: 11-50 | Roseville, MN, United States | 11-50 | Exact match | 21 contacts → |
“Welcome to Arthur's Jewelers!” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nagi Jewelersnagijewelers.com HQ: Stamford, CT, United StatesReported employees: 11-50 | Stamford, CT, United States | 11-50 | Exact match | 20 contacts → |
“Purveyors of the finest & rarest diamonds, designer jewelry & timepieces.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Hartmannshartmanns.com HQ: Indre By, DenmarkReported employees: 11-50 | Indre By, Denmark | 11-50 | Exact match | 19 contacts → |
“Unique expertise, craftsmanship and passion for diamonds since 1997 has solidly positioned Hartmann's Fine Jewellery as a leading business within exclusive diamond jewelry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Perry's Diamonds & Estate Jewelryperrysjewelry.com HQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 19 contacts → |
“Whether you're celebrating a job promotion, a big sale, a huge milestone, or "just because", Perry's is Charlotte's best spot for all of your luxury jewels and fine estate…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kiefer Jewelerskvjewels.com HQ: Lutz, United StatesReported employees: 11-50 | Lutz, United States | 11-50 | Exact match | 19 contacts → |
“The Tampa Bay Area's Only Independent Official Rolex jeweler.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Elizabeth Diamond Companyshopedc.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 17 contacts → |
“Outstanding Russian Cuts Diamonds Repair, Appraisal, Cad Cam Custom Design Large Bridal Collection” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Winnipeg, MB, CanadaReported employees: 11-50 | Winnipeg, MB, Canada | 11-50 | Exact match | 17 contacts → |
“Independent Jewellers was found in 1937 by John H.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Beyond79beyond79.com HQ: Boca Raton, FL, United StatesReported employees: 11-50 | Boca Raton, FL, United States | 11-50 | Exact match | 17 contacts → |
“Welcome Beyond79 is a community of committed jewelry professionals dedicated to the cultivation of passionate customers by delivering the ultimate online jewelry experience.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Holloway Diamondshollowaydiamonds.com.au HQ: Canterbury, United KingdomReported employees: 11-50 | Canterbury, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Holloway Diamonds apply our founders’ Science of Sparkle.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The GEM Collectiongemcollection.com HQ: Tallahassee, FL, United StatesReported employees: 11-50 | Tallahassee, FL, United States | 11-50 | Exact match | 17 contacts → |
“The Gem Collection is a full service jewelry store specializing in: Engagement & Bridal jewelry Special Occaision Jewelry Designer Jewelry Pandora Fine Diamond & Colored Stone…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Michael Genovese Jewelersgenovesejewelers.com HQ: Creve Coeur, MO, United StatesReported employees: 11-50 | Creve Coeur, MO, United States | 11-50 | Exact match | 16 contacts → |
“Genovese Jewelers has been one of the top St.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Nader Kashnaderkash.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 16 contacts → |
“Nader Kash began as a New York City based diamond house offering GIA certified loose diamonds with exceptional makes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ZCOVAzcova.com HQ: Petaling Jaya, MalaysiaReported employees: 1-10 | Petaling Jaya, Malaysia | 1-10 | Exact match | 16 contacts → |
“At ZCOVA, we modernise the way consumers purchase Diamonds, Coloured Gemstones, and Jewellery.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 756 company matches
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Diamond jewelry appraisers: dataset insights
September 19, 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
742 records in the displayed employee bands.
14 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 756 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: September 19, 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 jewelry appraisers by location
3 lists · largest firstEvery Diamond jewelry appraisers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for diamond jewelry appraisers?
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 jewelry appraisers did RevenueBase find worldwide?
The saved snapshot records 756 matching company records, 4,113 tracked contacts and 946 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: September 19, 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
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Cite this list
RevenueBase Data Team. Top 25 diamond jewelry appraisers worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/diamond-jewelry-appraisers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗