Company lists · Data refreshed November 2026

Top 25 Diamond certification software consultants worldwide

RevenueBase identified 311 company matches for diamond certification software consultants worldwide as of November 2026 and tracks 4,241 professional contacts across them, including 779 with verified work emails. India is the largest market and Surat the largest hub.

This list covers company matches for diamond certification software consultants 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 November 5, 2026. Country and city lists for diamond certification software consultants 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
311Companies
4,241Contacts tracked
779Verified emails
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The 25 largest diamond certification software consultants worldwide

Ranked by team size
Top 25 of 311 company matches for diamond certification software consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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, CA, United StatesHQ recorded Nov 5, 2026501-1,000385 contacts →

Exact match

“IGI, a Blackstone portfolio company, is the world’s largest independent provider of gemological services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchAntwerp, BelgiumHQ recorded Nov 5, 2026201-500260 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 · Nov 5, 2026 · View company records in RevenueBase
3Exact matchHod Hasharon, IsraelHQ recorded Nov 5, 2026501-1,000252 contacts →

Exact match

“Since 1988, Sarine Technologies has been the leading technology company in the worldwide diamond domain, providing multi-disciplinary products based on cutting-edge technology to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNew York, United StatesHQ recorded Nov 5, 202651-200210 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 · Nov 5, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-500193 contacts →

Exact match

“Peace of mind, Assured.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchManhattan, United StatesHQ recorded Nov 5, 202651-200161 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchMumbai, IndiaHQ recorded Nov 5, 20261,001-5,000127 contacts →

Exact match

“A dream company started by three visionaries; Arvind Shah, Arun Shah and Dilip Shah in 1985, was then strengthened by Vasant Shah, Pravin Shah and Dilip Soni, bringing together…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchIndiaHQ recorded Nov 5, 2026501-1,00073 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchUnited StatesHQ recorded Nov 5, 202651-20061 contacts →

Exact match

“IDT is among the premier networks of Gemological Laboratories, which empowers and enables jewellers, jewellery brands, manufacturers, wholesalers, end-use customers and the masses…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchPort Louis, MauritiusHQ recorded Nov 5, 20261,001-5,00049 contacts →

Exact match

“Constell has its origins in leading diamond manufacturing facility, Worldwide Diamond Manufacturers (WDM), which was established in 1997 in Visakhapatnam, India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchMumbai, IndiaHQ recorded Nov 5, 202611-5044 contacts →

Exact match

“Samyak was incorporated in 2005 with the aim of providing software solutions and services to Diamond, Gems & Jewellery industry across the globe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchNew York, United StatesHQ recorded Nov 5, 202611-5035 contacts →

Exact match

“50 Years of Diamonds.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSurat, IndiaHQ recorded Nov 5, 202651-20028 contacts →

Exact match

“DRC – Minds that Care DRC is a technology and innovation-driven company that began its journey in 2012 as a social enterprise, with a clear vision to deliver cost-effective…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSurat, IndiaHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“UPQOR Private Limited is a dynamic software development company with a strong presence in Surat, Gujarat, and Virar, Maharashtra, India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchGeneva, SwitzerlandHQ recorded Nov 5, 202611-5026 contacts →

Exact match

“GGTL Laboratories is the merging of two laboratories: GemTechLab, founded in 1996 by Franck Notari in Geneva, Switzerland and GEMLAB (Liechtenstein), founded in 1996 by Thomas…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSurat, IndiaHQ recorded Nov 5, 202651-20026 contacts →

Exact match

“Diamond and Jewelries processing machines Manufacturer and exporter.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBangkok, ThailandHQ recorded Nov 5, 202611-5025 contacts →

Exact match

“ICA | GemLab is an expert in identification, origin determination, and treatment detection for colored gemstones.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMumbai, IndiaHQ recorded Nov 5, 2026201-50024 contacts →

Exact match

“Established in 1996, Finestar Jewellery & Diamond Pvt ltd is a Diamond Manufacturing Company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchIstanbul, TürkiyeHQ recorded Nov 5, 202651-20024 contacts →

Exact match

“Yolculuğumuz, 10 yılı aşkın süredir yüzbinlerce pırlantayı derecelendiren uzman gemologların bir araya gelmesiyle başladı.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchMumbai, IndiaHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“We specialize in GIA certified diamonds with a choice of 6,500+ stones with AI technology of Auto Answering and 24*7 @Bot helpline to serve all our customers regardless of time…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchMumbai, IndiaHQ recorded Nov 5, 202611-5020 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchClerkenwell, United KingdomHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“Mireya UK Ltd prides itself in offering integrated business solutions for diamond & diamond jewellery retailers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchAntwerp, BelgiumHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Diamond Computer Aided Design - Extraordinary diamonds of the highest excellence.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchRamat-gan, IsraelHQ recorded Nov 5, 202651-20017 contacts →

Exact match

“SAHAR ATID specializes in sorting, polishing and distributing loose diamonds for wholesale and retail.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchMumbai-400093, IndiaHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“Effission Software has leveraged simple technology to create powerful solutions targeted at the jewelry business vertical.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 311 diamond certification software consultants worldwide

See the full list, filter by size, metro and specialty, and access 779 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diamond certification software consultants worldwide at a glance

As of Nov 5, 2026
18.4%Verified-email coverage
13.6Average contacts per company
1-10Median size (employees)
9.6%Largest-city concentration · Surat
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
162
11-50
95
51-200
21
201-500
11
501-1,000
12
1,001-5,000
4
5,001-10,000
1

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 certification software consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “diamond certification software consultants” 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 779 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 5, 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 certification software consultants by location

2 lists · largest first

Every Diamond certification software consultants 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 certification software consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many diamond certification software consultants are there worldwide?

RevenueBase identified 311 company matches for diamond certification software consultants worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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 certification software consultants?

India leads with 93 companies, followed by the United States (37). Every diamond certification software consultants list by country and city is linked on this page.

Which city has the most diamond certification software consultants?

Surat leads with 30 company records, followed by Mumbai (20) and New York (18).

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 779 professional contacts with verified work emails tracked across these 311 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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.