Company lists · Data refreshed September 2026

Top 25 Certified gemstone retailers based in the United States

RevenueBase identified 1,144 company matches for certified gemstone retailers associated with the United States as of September 2026 and tracks 13,327 professional contacts across them, including 4,069 with verified work emails. New York is the largest hub.

This list covers company matches for certified gemstone retailers associated with the United States, 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.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
1,144Companies
13,327Contacts tracked
4,069Verified emails
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The 25 largest certified gemstone retailers based in the United States

Ranked by team size
Top 25 of 1,144 company matches for certified gemstone retailers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026501-1,000858 contacts →

Exact match

“Blue Nile was founded in with the idea that the diamond and engagement ring business was ready for innovation.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 19, 2026501-1,000846 contacts →

Exact match

“Brilliant Earth was founded by Beth Gerstein and Eric Grossberg as a response to the lack of transparency and irresponsible mining practices that confront the jewelry industry…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchKnoxville, TN, United StatesHQ recorded Sep 19, 20261,001-5,000837 contacts →

Exact match

“At Jewelry Television® our mission is to open the world of fine jewelry and gemstones to everyone.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchCharlotte, NC, United StatesHQ recorded Sep 19, 2026501-1,000587 contacts →

Exact match

“Founded in 1995 and headquartered in Charlotte, North Carolina, Diamonds Direct offers one of the largest selections of fine jewelry and diamonds in the United States.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026501-1,000394 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
6Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,000275 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 · Sep 19, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202651-200204 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 · Sep 19, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202651-200168 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
9Exact matchManhattan, United StatesHQ recorded Sep 19, 202651-200160 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
10Exact matchClearwater, FL, United StatesHQ recorded Sep 19, 202651-200111 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
11Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,00098 contacts →

Exact match

“H.K.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchFort Lee, NJ, United StatesHQ recorded Sep 19, 202651-20085 contacts →

Exact match

“GemsNY is your trusted source for untreated, certified natural color gemstones and custom fine jewelry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchNashville, TN, United StatesHQ recorded Sep 19, 202651-20073 contacts →

Exact match

“Genesis Diamonds has been redefining the jewelry experience since 2004, bringing unmatched value, education, and selection to Tennessee, Ohio, and Kentucky.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchBoynton Beach, FL, United StatesHQ recorded Sep 19, 202651-20065 contacts →

Exact match

“Over the past two decades, Brilliance has built a reputation as one of the leading retailers of diamonds, engagement rings, and fine jewelry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchMorrisville, NC, United StatesHQ recorded Sep 19, 202651-20063 contacts →

Exact match

“Charles & Colvard (OTC: CTHR) believes fine jewelry can be accessible, beautiful and conscientious.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchHeath, OH, United StatesHQ recorded Sep 19, 202651-20054 contacts →

Exact match

“Dunkin’s Diamonds is a three generation tradition, which started in Europe and has since grown into several locations in Ohio and Florida.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchDenver, CO, United StatesHQ recorded Sep 19, 202651-20052 contacts →

Exact match

“At Hyde Park, we have always strived to deliver unparalleled service while offering an exceptional selection of the finest timepieces, designer jewelry and exquisite gemstones.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchRochester, NY, United StatesHQ recorded Sep 19, 202651-20049 contacts →

Exact match

“America's Diamond Specialist - Memo and Stock Quality, attention to detail, honesty, fairness, and on-time delivery.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchLos Angeles, CA, United StatesHQ recorded Sep 19, 202651-20049 contacts →

Exact match

“Our Story Founded in 2005 by Ankur and Aditi Daga, Angara is a family-started and family-run D2C fine jewelry e-tailer with generations of expertise in gemstones and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Sep 19, 202651-20049 contacts →

Exact match

“We partner with you.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202651-20046 contacts →

Exact match

“ASHI is one of the premier diamond jewelry manufacturers servicing over of the finest Independent Retail Jewelers in North America for over 40 years.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchWestfield, CT, United StatesHQ recorded Sep 19, 202651-20045 contacts →

Exact match

“Michaels Jewelers has been in business for over 130 years with 9 Michaels stores throughout Connecticut.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202651-20045 contacts →

Exact match

“Rosec Jewels is the online jewelry store of handmade fine jewelry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchDayton, OH, United StatesHQ recorded Sep 19, 202651-20039 contacts →

Exact match

“James Free is the home of fine jewelry, sincerely committed to curating the finest natural diamonds and rarities with a casually high-end experience and remarkable service…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202611-5038 contacts →

Exact match

“Join Fastest Growing B2B diamond Marketplace The Diamond Port streamlines your diamond sourcing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 1,144 certified gemstone retailers based in the United States

See the full list, filter by size, metro and specialty, and access 4,069 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Certified gemstone retailers based in the United States at a glance

As of Sep 19, 2026
30.5%Verified-email coverage
11.6Average contacts per company
1-10Median size (employees)
21.9%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
699
11-50
353
51-200
62
201-500
7
501-1,000
9
1,001-5,000
8
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,144 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 the United States whose business descriptions match “certified gemstone retailers” 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 4,069 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.

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 “certified gemstone retailers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many certified gemstone retailers are there based in the United States?

RevenueBase identified 1,144 company matches for certified gemstone retailers associated with the United States 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?

Blue Nile tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most certified gemstone retailers?

New York leads with 250 company records, followed by Los Angeles (43) and Chicago (22).

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 4,069 professional contacts with verified work emails tracked across these 1,144 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.

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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.