Company lists · Data refreshed September 2026

Top 25 Diamond exploration companies based in the United Kingdom

Name: Diamond exploration companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 117 companies tracked

RevenueBase identified 117 diamond exploration companies headquartered in the United Kingdom as of September 2026 and tracks 5,862 professional contacts across them, including 1,125 with verified work emails. London is the largest hub.

This list covers diamond exploration companies headquartered in the United Kingdom, 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 19, 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 19, 2026 86% judged on-target in blind review

117Companies

5,862Contacts tracked

1,125Verified emails

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The 25 largest diamond exploration companies based in the United Kingdom

Ranked by team size

Top 25 of 117 diamond exploration companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to diamond exploration 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	DE Beers Group	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	10001+	3,820 contacts →
	Partial evidence “The only luxury diamond brand present at source.” Source: RevenueBase Database · checked Sep 19, 2026
2	Diamond Heaven	Partial evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	51-200	29 contacts →
	Partial evidence “Established in 2004, Diamond Heaven is an award winning jeweller based in the U.K’s historic Jewellery Quarter, Birmingham.” Source: RevenueBase Database · checked Sep 19, 2026
3	Henig Diamonds	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “For over 30 years, Henig Diamonds has been at the heart of the UK diamond trade, proudly supplying jewellers, wholesalers, and retailers across Europe.” Source: RevenueBase Database · checked Sep 19, 2026
4	Fenton	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “Fenton is a fine jeweller based in the heart of Mayfair specialising in responsibly-sourced coloured gemstones and Solar Diamonds created by sunlight.” Source: RevenueBase Database · checked Sep 19, 2026
5	Wardell Armstrong International NOW SLR	Indirect evidence	Truro, United KingdomHQ checked Sep 19, 2026	201-500	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
6	IGS International Geoscience Services LTD	Indirect evidence	Bingham, United KingdomHQ checked Sep 19, 2026	1-10	15 contacts →
	Indirect evidence “IGS (International Geoscience Services) Ltd is a UK based, specialist consultancy supporting and promoting the mineral resource sector by collecting, quality control, defining…” Source: RevenueBase Database · checked Sep 19, 2026
7	FWS Consultants LTD	Indirect evidence	Durham, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “FWS Consultants Ltd is an established, internationally recognised consultancy with over 40 years' experience providing ground investigation, geo-environmental, geotechnical and…” Source: RevenueBase Database · checked Sep 19, 2026
8	Samara James	Partial evidence	Shepperton, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “Samara James is an award winning jeweller specialising in perfectly cut diamonds.” Source: RevenueBase Database · checked Sep 19, 2026
9	GEM Diamonds Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	11 contacts →
	Partial evidence “Gem Diamonds is a leading global diamond producer of high value diamonds.” Source: RevenueBase Database · checked Sep 19, 2026
10	Skydiamond	Indirect evidence	Stroud, United KingdomHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “At the intersection of luxury and conscience, Skydiamond inspires you to wear your values.” Source: RevenueBase Database · checked Sep 19, 2026
11	Addison Mining Services	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “At Addison Mining Services Ltd we pride ourselves on delivering high quality mining solutions to the global mineral industry.” Source: RevenueBase Database · checked Sep 19, 2026
12	Backes & Strauss	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	6 contacts →
	Partial evidence “As the world’s oldest diamond company (est.” Source: RevenueBase Database · checked Sep 19, 2026
13	Hexa Resources	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Hexa Resources is a UK based private coloured gemstone business, focused on mining and trading emeralds in Brazil and Colombia.” Source: RevenueBase Database · checked Sep 19, 2026
14	Alan Bick Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “ALAN BICK LIMITED is a diamond merchants and jewellery manufacturers, based out of 100 Hatton Garden, Holborn, LONDON, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
15	Emdico	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	5 contacts →
	Partial evidence “Founded in 1985, Emdico (London) Limited is a diamond specialist with a strong global presence.” Source: RevenueBase Database · checked Sep 19, 2026
16	MSA Mining Consulting UK	Partial evidence	Cardiff, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “MSA Mining Consulting UK Ltd is part of the larger MSA Group, an independent technical consultancy providing high quality geology, exploration, mineral resource, mining and…” Source: RevenueBase Database · checked Sep 19, 2026
17	Astra Mining LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Astra Mining is a next-generation junior exploration mining company focused on redefining mineral discovery through data-driven strategies and advanced technology.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ortac Resources Ltd. AIM OTC	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “The Company has a current JORC Code (2004) compliant Mineral Resource of 1.2 million ounces of gold equivalent from its Šturec Project located in central Slovakia.” Source: RevenueBase Database · checked Sep 19, 2026
19	Coborn Engineering CO LTD	Partial evidence	Romford, United KingdomHQ checked Sep 19, 2026	51-200	3 contacts →
	Partial evidence “Coborn's entry into the diamond grinding market has been an evolutionary process, based on our fundamental skills in balancing and spindle design.” Source: RevenueBase Database · checked Sep 19, 2026
20	Monnickendam Diamonds	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “Monnickendam Diamonds is one of the oldest and largest sellers of loose and certified diamonds in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
21	Tova Diamonds	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Tova Diamonds is a diamond wholesaler located in Mayfair.” Source: RevenueBase Database · checked Sep 19, 2026
22	IGI Inex Holding LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	2 contacts →
	Indirect evidence “IGI Inex Holding Ltd is a privately-owned international business group that is active in mining, manufacturing, gemstones, real estate and financial services Currently, IGI Inex…” Source: RevenueBase Database · checked Sep 19, 2026
23	Rocklore Exploration Services Limited	Partial evidence	Guildford, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Rocklore aims to provide a spectrum of mineral exploration services to mining companies in remote and challenging locations around the world.” Source: RevenueBase Database · checked Sep 19, 2026
24	Serendipity Diamonds	Partial evidence	Ryde, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “At Serendipity Diamonds, our small and friendly team of jewellery and diamond experts innovate and create fine diamond jewellery with exceptional value and meaning.” Source: RevenueBase Database · checked Sep 19, 2026
25	Radiant Diamond Consulting LTD	Partial evidence	Bromley, United KingdomHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Providing consultancy services to the diamond industry, including: market valuation of all diamonds (for mining companies, manufacturers, banks and others), using many market…” Source: RevenueBase Database · checked Sep 19, 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: diamond exploration 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 diamond exploration companies.
Partial evidence: Its own public description names part of diamond exploration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name diamond exploration 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 117 diamond exploration companies based in the United Kingdom

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Diamond exploration companies based in the United Kingdom at a glance

As of Sep 19, 2026

19.2%Verified-email coverage

50.1Average contacts per company

1-10Median size (employees)

51.3%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 117 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 diamond exploration 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “diamond exploration 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 diamond exploration 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 diamond exploration companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,125 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 19, 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.

Diamond exploration companies by metro

Diamond exploration companies in London60

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 diamond exploration 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 diamond exploration companies are there based in the United Kingdom?

RevenueBase identified 117 diamond exploration companies headquartered in the United Kingdom 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?

DE Beers Group, headquartered in London, tops this list with the largest team on record.

Which city has the most diamond exploration companies?

London leads with 60 headquartered companies, followed by Birmingham (3) and Derby (3).

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 1,125 verified decision-maker contacts tracked across these 117 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 19, 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.