Company lists · Data refreshed November 2026

Top 25 Diamond polishing services worldwide

RevenueBase identified 871 company matches for diamond polishing services worldwide as of November 2026 and tracks 9,151 professional contacts across them, including 1,159 with verified work emails. India is the largest market and Mumbai the largest hub.

This list covers company matches for diamond polishing services 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 6, 2026. Country and city lists for diamond polishing services 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 6, 2026 How this list was built
871Companies
9,151Contacts tracked
1,159Verified emails
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The 25 largest diamond polishing services worldwide

Ranked by team size
Top 25 of 871 company matches for diamond polishing services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchMumbai, IndiaHQ recorded Nov 6, 202610001+1,109 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMumbai, IndiaHQ recorded Nov 6, 20265,001-10,000418 contacts →

Exact match

“Dharmanandan Diamonds, widely known as DDPL is a prominent natural diamond manufacturing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,000262 contacts →

Exact match

“OUR HERITAGE: The Asian Star group represents a rich heritage of values, skills and experience, amassed over five decades in the diamond industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,000208 contacts →

Exact match

“Dimexon Diamonds Ltd, with sales offices in all 4 corners of the globe, is one of the world’s leading diamond manufacturers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchZoutleeuw, BelgiumHQ recorded Nov 6, 20261,001-5,000197 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,000185 contacts →

Exact match

“K.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,000110 contacts →

Exact match

“To join our family, fill this form for us to know you better - https://forms.gle/mMD8d1hP3NHWJmr59 Founded by brothers Mr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchChâtel-st-denis, SwitzerlandHQ recorded Nov 6, 2026201-50095 contacts →

Exact match

“Industrial diamond grinding and polishing tools.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMumbai, IndiaHQ recorded Nov 6, 2026201-50091 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,00089 contacts →

Exact match

“The Shairu Gems Diamonds Group is one of India’s leading polished diamond suppliers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAntwerp, BelgiumHQ recorded Nov 6, 2026501-1,00077 contacts →

Exact match

“Taché is a group of leading diamonds and jewelry companies operating in more than 15 counties over the five continents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,00075 contacts →

Exact match

“The Blue Star Diamonds group was established in Mumbai by Vasantlal Mehta in 1966.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchIndiaHQ recorded Nov 6, 2026501-1,00073 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCelle, GermanyHQ recorded Nov 6, 2026201-50054 contacts →

Exact match

“Precision engineering and diamonds form a significant contribution in a modern production environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRamat Gan, IsraelHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“YDI is a DTC Sightholder and is a longstanding key purchaser from all the major rough producers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,00052 contacts →

Exact match

“Established in 21st Century,"SNJ DIAM" is a fast-growing Diamond Processing Company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPort Louis, MauritiusHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
18Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,00047 contacts →

Exact match

“R.Rajesh Exports, which was founded in the early 1970’s, has emerged as a front row leader in the manufacturing of Finest Quality Diamonds and continues to expand its wings…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,00045 contacts →

Exact match

“Ratnakala is a natural diamond manufacturing company with more than forty-five years of experience serving both Indian and international markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRichmond, VA, United StatesHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Hoover & Strong supports jewelers, both large and small, with all of their production needs from contract casting to refining to diamond auctions and more.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“It all started in 1989 with small unit of manufacturing in Surat (INDIA) having only one passion in mind to produce finest quality of diamonds and supply to the World.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchUnited StatesHQ recorded Nov 6, 2026n/a41 contacts →

Exact match

“KARP a DTC Sightholder, has created a foundation of pioneering superlative manufacturing excellence and ingenious industry-leading innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchUnited StatesHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“GN Diamond has been in existence for over 35 years with offices in Israel and Philadelphia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“50 Years of Diamonds.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 871 diamond polishing services worldwide

See the full list, filter by size, metro and specialty, and access 1,159 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diamond polishing services worldwide at a glance

As of Nov 6, 2026
12.7%Verified-email coverage
10.5Average contacts per company
11-50Median size (employees)
7.0%Largest-city concentration · Mumbai
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
349
11-50
243
51-200
127
201-500
52
501-1,000
37
1,001-5,000
30
5,001-10,000
8
10001+
2

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 polishing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “diamond polishing services” 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 1,159 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 6, 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 polishing services by location

7 lists · largest first

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

How many diamond polishing services are there worldwide?

RevenueBase identified 871 company matches for diamond polishing services 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?

Kiran Gems Private Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most diamond polishing services?

India leads with 175 companies, followed by the United States (137) and Belgium (51). Every diamond polishing services list by country and city is linked on this page.

Which city has the most diamond polishing services?

Mumbai leads with 61 company records, followed by Surat (60) and Antwerp (37).

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 1,159 professional contacts with verified work emails tracked across these 871 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 6, 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.