Company lists · Data refreshed September 2026

Top 24 Industrial synthetic diamond manufacturers based in New York, United States

RevenueBase identified 50 industrial synthetic diamond manufacturers headquartered in New York, United States as of September 2026 and tracks 565 professional contacts across them, including 107 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers industrial synthetic diamond manufacturers headquartered in New York, United States, 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 30, 2026.

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 30, 2026 86% judged on-target in blind review
50Companies
565Contacts tracked
107Verified emails
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The 24 largest industrial synthetic diamond manufacturers based in New York, United States

Ranked by team size
Top 24 of 50 industrial synthetic diamond manufacturers based in New York, United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to industrial synthetic diamond manufacturers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 20261,001-5,00071 contacts →

Strong evidence

“Maitri Diamonds manufactures the perfectly sustainable alternative to naturally sourced mined diamonds – Lab-grown Diamonds.”

Source: RevenueBase Database · checked Sep 30, 2026
2Strong evidenceNew York, United StatesHQ checked Sep 30, 202611-5039 contacts →

Strong evidence

“Kiran Gems is the world's largest manufacturer and supplier of polished natural diamonds, establishing benchmarks not just for sheer scale of operations, but also for product…”

Source: RevenueBase Database · checked Sep 30, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 30, 2026n/a31 contacts →

Indirect evidence

“he 'Sanghavi Exports Group' was founded by the four Sanghavi brothers, Vasant, Kirti, Ramesh and Chandrakant in the late 70s, with a great vision of achieving major success &…”

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 30, 2026501-1,00029 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-5029 contacts →

Partial evidence

“Leviev Diamonds has been a trusted source of exceptional natural diamonds for polishers, cutters, and jewelers for over three decades.”

Source: RevenueBase Database · checked Sep 30, 2026
6Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 202651-20023 contacts →

Strong evidence

“Saban Diamonds (founded in 1977) and Onyx Diamonds (founded in 1987) made a name for themselves separately as pioneers in the manufacture of square and rectangular diamonds.”

Source: RevenueBase Database · checked Sep 30, 2026
7Partial evidenceNew York, United StatesHQ checked Sep 30, 202611-5018 contacts →

Partial evidence

“Labon Diamonds”

Source: RevenueBase Database · checked Sep 30, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-5018 contacts →

Partial evidence

“ALTR Created Diamonds are shaping the future of the lab-grown diamond industry.”

Source: RevenueBase Database · checked Sep 30, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-5017 contacts →

Partial evidence

“Now celebrating 75 years, for three generations, Grandview Klein has been renowned for its diamond cutting expertise and devotion to its clients.”

Source: RevenueBase Database · checked Sep 30, 2026
10Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 2026501-1,00017 contacts →

Strong evidence

“As a leading manufacturer, Skylab empowers businesses to present their customers with exceptional lab grown diamonds and jewelry.”

Source: RevenueBase Database · checked Sep 30, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 202651-20015 contacts →

Partial evidence

“Evolvd cultures diamond in it's in-house manufacturing facility at Surat, India.”

Source: RevenueBase Database · checked Sep 30, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 2026501-1,00012 contacts →

Partial evidence

“About Creative Diam Since our inception in 2013, Creative Diam has been a leader in the lab-grown diamond sector.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-5012 contacts →

Indirect evidence

“Shefi is a family company.”

Source: RevenueBase Database · checked Sep 30, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-5011 contacts →

Indirect evidence

“Kukadia Group Is The Preferred Diamantaire To The World Because We Are Embracing The Change And Keep On Introducing The Unmatched Bouquet Of The Products Of The Highest Quality At…”

Source: RevenueBase Database · checked Sep 30, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-507 contacts →

Partial evidence

“Full of integrity and ambition as a young boy, Abe Mor discovered his passion for diamonds at the young age of 13.”

Source: RevenueBase Database · checked Sep 30, 2026
16Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 20261-107 contacts →

Strong evidence

“Born in 2022, Elysian Design, is a leading manufacturer of lab-grown diamonds (Certified and Non-Certified) with our business spread across domestic and international markets.”

Source: RevenueBase Database · checked Sep 30, 2026
17Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 202651-2007 contacts →

Strong evidence

“Manufacturer of Lab-grown Diamonds - A truly Vertically Integrated Company Meraya started with a primary motive of providing its customers with affordable and quality lab-grown…”

Source: RevenueBase Database · checked Sep 30, 2026
18Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-504 contacts →

Strong evidence

“Premier Gem is a multifaceted diamond & diamond jewelry manufacturer recognized as a De Beers Sightholder for over 50 years.”

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 30, 20261-104 contacts →

Indirect evidence

“lieber & solow is a company based out of United States.”

Source: RevenueBase Database · checked Sep 30, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 202611-504 contacts →

Partial evidence

“For the past few years, Shinebright has been shining bright in the emerging lab-grown diamond industry, offering a stunning array of ethically sourced, man-made diamonds and…”

Source: RevenueBase Database · checked Sep 30, 2026
21Strong evidenceNew York, NY, United StatesHQ checked Sep 30, 20261-103 contacts →

Strong evidence

“Stienhardt & Stones is a leading lab grown diamond manufacturer and retailer, committed to crafting ethically-sourced, sustainable and high-quality diamonds.”

Source: RevenueBase Database · checked Sep 30, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“Diamond Industry Disruptors Bare Diamond was created by a trust of second-generation jewelers who felt it was important to offer an alternative to the environmental and human…”

Source: RevenueBase Database · checked Sep 30, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 30, 20261-101 contacts →

Partial evidence

“A leading Lab Created Diamonds manufacturing and sourcing company.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 24 of 50 industrial synthetic diamond manufacturers based in New York, United States

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Industrial synthetic diamond manufacturers based in New York, United States at a glance

As of Sep 30, 2026
18.9%Verified-email coverage
11.3Average contacts per company
11-50Median size (employees)
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
17
51-200
6
201-500
2
501-1,000
5
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 50 companies.

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 industrial synthetic diamond manufacturers, 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.
What qualifies
Companies headquartered in New York, United States whose own description of what they do matches “industrial synthetic diamond manufacturers”. 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 industrial synthetic diamond manufacturers), 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 industrial synthetic diamond manufacturers, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
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, 107 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 30, 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.

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 industrial synthetic diamond manufacturers, 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 industrial synthetic diamond manufacturers are there based in New York, United States?

RevenueBase identified 50 industrial synthetic diamond manufacturers headquartered in New York, United States 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?

Maitri Diamonds INC, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most industrial synthetic diamond manufacturers?

New York leads the United States with 50 headquartered companies, followed by Los Angeles (7) and Santa Clara (4).

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 107 verified decision-maker contacts tracked across these 50 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 30, 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.