Company lists · Data refreshed September 2026

Top 12 Monocrystalline diamond manufacturers based in Belgium

Name: Monocrystalline diamond manufacturers based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 28 companies tracked

RevenueBase identified 28 monocrystalline diamond manufacturers headquartered in Belgium as of September 2026 and tracks 341 professional contacts across them, including 32 with verified work emails. Antwerpen is the largest hub.

This list covers monocrystalline diamond manufacturers headquartered in Belgium, 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 17, 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 17, 2026 86% judged on-target in blind review

28Companies

341Contacts tracked

32Verified emails

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The 12 largest monocrystalline diamond manufacturers based in Belgium

Ranked by team size

Top 12 of 28 monocrystalline diamond manufacturers based in Belgium, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to monocrystalline 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Muller	Indirect evidence	Zoutleeuw, BelgiumHQ checked Sep 17, 2026	501-1,000	195 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
2	DHV Manufacturing NV	Partial evidence	Antwerp, BelgiumHQ checked Sep 17, 2026	1-10	24 contacts →
	Partial evidence “DHV has been a producer of quality diamonds for the last 70 years.” Source: RevenueBase Database · checked Sep 17, 2026
3	Diamcad	Partial evidence	Antwerp, BelgiumHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “Diamond Computer Aided Design - Extraordinary diamonds of the highest excellence.” Source: RevenueBase Database · checked Sep 17, 2026
4	SDE Group Diamonds	Strong evidence	Antwerp, BelgiumHQ checked Sep 17, 2026	11-50	16 contacts →
	Strong evidence “The SDE Group is an internationally positioned diamond trader and manufacturer.” Source: RevenueBase Database · checked Sep 17, 2026
5	AMC Diamonds	Indirect evidence	Antwerp, BelgiumHQ checked Sep 17, 2026	51-200	7 contacts →
	Indirect evidence “Headquartered in Antwerp since 1988, A.M.C.” Source: RevenueBase Database · checked Sep 17, 2026
6	Sarine	Indirect evidence	Brussels, BelgiumHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
7	Konfidi	Partial evidence	Roeselare, BelgiumHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Konfidi makes triple excellent products for the diamond industry.” Source: RevenueBase Database · checked Sep 17, 2026
8	GPN Diamond	Strong evidence	Antwerp, BelgiumHQ checked Sep 17, 2026	1-10	4 contacts →
	Strong evidence “GPN Diamond is here, as the professional manufacturer of Natural white diamonds with experience of 40 years, we sincerely wish to work with you on the products of Round Brilliant…” Source: RevenueBase Database · checked Sep 17, 2026
9	HB Blueprint	Partial evidence	Lier, BelgiumHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “HB Blueprint is a diamond technology company with decades of expertise.” Source: RevenueBase Database · checked Sep 17, 2026
10	Madestones	Partial evidence	Antwerp, BelgiumHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Madestones® has grown into a well-established producer and distributor of laboratory-grown diamonds in Europe.” Source: RevenueBase Database · checked Sep 17, 2026
11	Bichachi Diamonds	Indirect evidence	Antwerpen, BelgiumHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
12	Carbon 6 Diamonds	Strong evidence	Antwerpen, BelgiumHQ checked Sep 17, 2026	1-10	1 contacts →
	Strong evidence “We manufacture large high end diamonds in all shapes and colours that find their way to the biggest jewelry houses in the world.” Source: RevenueBase Database · checked Sep 17, 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: monocrystalline diamond manufacturers. 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 monocrystalline diamond manufacturers.
Partial evidence: Its own public description names part of monocrystalline diamond manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name monocrystalline diamond manufacturers. 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 12 of 28 monocrystalline diamond manufacturers based in Belgium

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Monocrystalline diamond manufacturers based in Belgium at a glance

As of Sep 17, 2026

9.4%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

39.3%Largest-city concentration · Antwerpen

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 28 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 monocrystalline 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 Belgium whose own description of what they do matches “monocrystalline 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 monocrystalline 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 monocrystalline diamond manufacturers, and records with no verified work email. Companies headquartered outside Belgium 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, 32 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 17, 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 monocrystalline 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 monocrystalline diamond manufacturers are there based in Belgium?

RevenueBase identified 28 monocrystalline diamond manufacturers headquartered in Belgium 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?

Muller, headquartered in Zoutleeuw, tops this list with the largest team on record.

Which city has the most monocrystalline diamond manufacturers?

Antwerpen leads with 11 headquartered companies, followed by Antwerp (5) and Bruxelles (1).

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 32 verified decision-maker contacts tracked across these 28 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 17, 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.