Company lists · Data refreshed September 2026

Top 25 Sustainable diamond jewelry companies worldwide

Name: Sustainable diamond jewelry companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 6,824 companies tracked

RevenueBase identified 6,824 sustainable diamond jewelry companies worldwide as of September 2026 and tracks 111,418 professional contacts across them, including 18,254 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers sustainable diamond jewelry companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for sustainable diamond jewelry companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

6,824Companies

111,418Contacts tracked

18,254Verified emails

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The 25 largest sustainable diamond jewelry companies worldwide

Ranked by team size

Top 25 of 6,824 sustainable diamond jewelry companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable diamond jewelry companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Signet Jewelers	Strong evidence	Akron, OH, United StatesHQ checked Sep 22, 2026	10001+	6,690 contacts →
	Strong evidence “Signet operates approximately 2,600 stores primarily under the name brands of Kay Jewelers, Zales, Jared, Banter by Piercing Pagoda, Diamonds Direct, Blue Nile, Peoples Jewellers…” Source: RevenueBase Database · checked Sep 22, 2026
2	DE Beers Group	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	10001+	3,820 contacts →
	Partial evidence “The only luxury diamond brand present at source.” Source: RevenueBase Database · checked Sep 22, 2026
3	Caratlane	Partial evidence	Chennai, IndiaHQ checked Sep 22, 2026	1,001-5,000	2,453 contacts →
	Partial evidence “CaratLane, India’s first omni-channel jewellery brand, has been redefining how people experience jewellery since its founding in 2008, by Mithun Sacheti and Srinivasa Gopalan.” Source: RevenueBase Database · checked Sep 22, 2026
4	Jared Jewelers	Strong evidence	Akron, OH, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,118 contacts →
	Strong evidence “Jared is redefining how luxury is felt and expressed, through unique and memorable customer experiences and an array of on-trend, high-quality 18K gold and diamond fine jewelry…” Source: RevenueBase Database · checked Sep 22, 2026
5	Tous Jewelry	Indirect evidence	Manresa, SpainHQ checked Sep 22, 2026	1,001-5,000	1,838 contacts →
	Indirect evidence “About TOUS With more than professionals, TOUS has promoted its corporate culture based on legacy, commitment and creativity since it was set up in 1920, when it started out in the…” Source: RevenueBase Database · checked Sep 22, 2026
6	Helzberg Diamonds	Indirect evidence	North Kansas City, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,599 contacts →
	Indirect evidence “The Helzberg name stands for care and craft in every story since 1915.” Source: RevenueBase Database · checked Sep 22, 2026
7	Michael Hill	Indirect evidence	Cannon Hill, AustraliaHQ checked Sep 22, 2026	1,001-5,000	1,423 contacts →
	Indirect evidence “At Michael Hill, we are fuelled by our passion for helping people mark life’s moments - both big and small.” Source: RevenueBase Database · checked Sep 22, 2026
8	Kiran Gems Private Limited	Partial evidence	Mumbai, IndiaHQ checked Sep 22, 2026	10001+	1,052 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
9	GIVA	Partial evidence	Bangalore, IndiaHQ checked Sep 22, 2026	1,001-5,000	985 contacts →
	Partial evidence “GIVA is a premium jewellery brand aiming with a vision to make authentic, elegant and fine jewellery accessible in India.” Source: RevenueBase Database · checked Sep 22, 2026
10	Orra Fine Jewellery	Strong evidence	Mumbai, IndiaHQ checked Sep 22, 2026	1,001-5,000	919 contacts →
	Strong evidence “Global Pioneers in the art of jewelry and diamond perfection since ORRA's diamonds are rare, unique & responsibly sourced.” Source: RevenueBase Database · checked Sep 22, 2026
11	Harry Winston	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	501-1,000	911 contacts →
	Partial evidence “Harry Winston, Inc, the premier fine jewelry and watch retailer, is owned by The Swatch Group.” Source: RevenueBase Database · checked Sep 22, 2026
12	Effy Jewelry	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	1,001-5,000	911 contacts →
	Partial evidence “Established in 1979 by renowned jewelry designer Effy Hematian, Effy Jewelry is one of the most critically acclaimed and highly visible jewelry lines available in 2600 retail…” Source: RevenueBase Database · checked Sep 22, 2026
13	Hstern	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 22, 2026	1,001-5,000	886 contacts →
	Indirect evidence “Com 80 anos de história, a HStern é reconhecida mundialmente pelos conceitos criativos, iniciativas pioneiras e qualidade tradicional de suas joias.” Source: RevenueBase Database · checked Sep 22, 2026
14	Hari Krishna Exports Pvt. LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 22, 2026	5,001-10,000	861 contacts →
	Partial evidence “At Hari Krishna Exports, we are a global leader in the natural diamond industry, powered by a purpose that goes beyond our stones.” Source: RevenueBase Database · checked Sep 22, 2026
15	Blue Nile	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	501-1,000	858 contacts →
	Partial evidence “Blue Nile was founded in with the idea that the diamond and engagement ring business was ready for innovation.” Source: RevenueBase Database · checked Sep 22, 2026
16	Brilliant Earth	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	501-1,000	846 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
17	Mejuri	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	201-500	782 contacts →
	Indirect evidence “At Mejuri, we're redefining luxury.” Source: RevenueBase Database · checked Sep 22, 2026
18	APM Monaco	Partial evidence	MonacoHQ checked Sep 22, 2026	1,001-5,000	744 contacts →
	Partial evidence “APM Monaco is a leader in the global fashion jewelry market.” Source: RevenueBase Database · checked Sep 22, 2026
19	Gorjana	Indirect evidence	Laguna Beach, CA, United StatesHQ checked Sep 22, 2026	n/a	665 contacts →
	Indirect evidence “Gorjana and Jason Griffin Reidel followed a creative impulse and founded gorjana in Laguna Beach, California in 2004.” Source: RevenueBase Database · checked Sep 22, 2026
20	PC Jeweller LTD	Partial evidence	New Delhi, IndiaHQ checked Sep 22, 2026	1,001-5,000	664 contacts →
	Partial evidence “It all started when PC Jeweller first opened its first showroom in 2005 in Karol Bagh, New Delhi with a vision to redefine elegance, allure and style in the form of stunning…” Source: RevenueBase Database · checked Sep 22, 2026
21	Pomellato	Indirect evidence	Milan, ItalyHQ checked Sep 22, 2026	201-500	643 contacts →
	Indirect evidence “Established in Milan in 1967, Pomellato is renowned for its unique design, colorful gemstones, and elegant yet unconventional style.” Source: RevenueBase Database · checked Sep 22, 2026
22	Diamonds Direct	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 22, 2026	501-1,000	587 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026
23	Reeds Jewelers	Partial evidence	Wilmington, NC, United StatesHQ checked Sep 22, 2026	501-1,000	541 contacts →
	Partial evidence “Founded in 1946 by Bill and Roberta Zimmer in Wilmington NC, REEDS Jewelers is a true American success story.” Source: RevenueBase Database · checked Sep 22, 2026
24	Rosy Blue	Strong evidence	Antwerp, BelgiumHQ checked Sep 22, 2026	5,001-10,000	467 contacts →
	Strong evidence “Rosy Blue is one of the most renowned diamond and jewelry companies in the world.” Source: RevenueBase Database · checked Sep 22, 2026
25	KISNA	Strong evidence	Mumbai, IndiaHQ checked Sep 22, 2026	5,001-10,000	430 contacts →
	Strong evidence “KISNA is the flagship diamond and gold jewellery brand from the Hari Krishna Group that offers trusted diamond expertise in design and innovation.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sustainable diamond jewelry companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sustainable diamond jewelry companies.
Partial evidence: Its own public description names part of sustainable diamond jewelry companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable diamond jewelry companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 6,824 sustainable diamond jewelry companies worldwide

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Sustainable diamond jewelry companies worldwide at a glance

As of Sep 22, 2026

16.4%Verified-email coverage

16.3Average contacts per company

1-10Median size (employees)

5.6%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

3,928

11-50

1,783

51-200

628

201-500

227

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sustainable diamond jewelry companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for sustainable diamond jewelry companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “sustainable diamond jewelry companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sustainable diamond jewelry companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among sustainable diamond jewelry companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 18,254 across the full list. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Sustainable diamond jewelry companies by location

32 lists · largest first

Every Sustainable diamond jewelry companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sustainable diamond jewelry companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sustainable diamond jewelry companies are there worldwide?

RevenueBase identified 6,824 sustainable diamond jewelry companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Signet Jewelers, headquartered in Akron, tops this list with the largest team on record.

Which country has the most sustainable diamond jewelry companies?

The United States leads with 1,628 companies, followed by India (1,371) and the United Kingdom (422). Every sustainable diamond jewelry companies list by country and city is linked on this page.

Which city has the most sustainable diamond jewelry companies?

New York leads with 379 headquartered companies, followed by Mumbai (313) and Surat (247).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 18,254 verified decision-maker contacts tracked across these 6,824 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 Smart Search, 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.