Company lists · Data refreshed September 2026

Top 25 Gemstone manufacturers based in Switzerland

Name: Gemstone manufacturers based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 113 companies tracked

RevenueBase identified 113 gemstone manufacturers headquartered in Switzerland as of September 2026 and tracks 731 professional contacts across them, including 197 with verified work emails. Geneve is the largest hub.

This list covers gemstone manufacturers headquartered in Switzerland, 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 16, 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 16, 2026 86% judged on-target in blind review

113Companies

731Contacts tracked

197Verified emails

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The 25 largest gemstone manufacturers based in Switzerland

Ranked by team size

Top 25 of 113 gemstone manufacturers based in Switzerland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to gemstone 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	Niru Group	Indirect evidence	Plan-les-ouates, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	157 contacts →
	Indirect evidence “Founded in 1979, NIRU is infused with a family spirit and a passionate commitment to creating a positive impact on people and planet.” Source: RevenueBase Database · checked Sep 16, 2026
2	LA Pierrette SA	Indirect evidence	Le Chenit, SwitzerlandHQ checked Sep 16, 2026	201-500	98 contacts →
	Indirect evidence “Basée au coeur de la Vallée de Joux en Suisse, berceau de la Haute Horlogerie, la Pierrette SA fabrique une large gamme de pierres fines pour l'horlogerie, des plus classiques aux…” Source: RevenueBase Database · checked Sep 16, 2026
3	Sokolov Jewelry	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	75 contacts →
	Indirect evidence “Jewelry has fascinated people for centuries.” Source: RevenueBase Database · checked Sep 16, 2026
4	Diacore Group	Indirect evidence	Batiment Aerogare Fret 1211, SwitzerlandHQ checked Sep 16, 2026	501-1,000	20 contacts →
	Indirect evidence “pursue perfection and excellence at every stage." Diacore, a multinational company, has diversified interests in the diamond industry providing rough and polished diamonds to…” Source: RevenueBase Database · checked Sep 16, 2026
5	Real Stein AG	Indirect evidence	Gibswil, SwitzerlandHQ checked Sep 16, 2026	51-200	15 contacts →
	Indirect evidence “The family-run business Real Stein AG is the leading Swiss company in the natural stone sector.” Source: RevenueBase Database · checked Sep 16, 2026
6	Gehri Rivestimenti SA	Indirect evidence	Porza, SwitzerlandHQ checked Sep 16, 2026	51-200	11 contacts →
	Indirect evidence “Since 1970 we have been working in this sector, at first only in the Ticino area but now, due to our customers’ requests, we have extended our services to the entire country and…” Source: RevenueBase Database · checked Sep 16, 2026
7	Lab-S Group	Indirect evidence	Horgen, SwitzerlandHQ checked Sep 16, 2026	51-200	10 contacts →
	Indirect evidence “Lab-S Group is the world’s leading lab-grown diamond company, with expertise in diamond production, cutting, polishing, grading, marketing, and retail.” Source: RevenueBase Database · checked Sep 16, 2026
8	Avinas Jewelry	Indirect evidence	Geneva, SwitzerlandHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence “Avinas was founded in 2012 by Fabienne Ymar Fryba, a Swiss jewelry designer, who trained in New York.” Source: RevenueBase Database · checked Sep 16, 2026
9	Generelli SA	Indirect evidence	Rivera, SwitzerlandHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence “La Generelli SA nasce nel 1974 dalla tradizione ticinese della lavorazione della pietra naturale.” Source: RevenueBase Database · checked Sep 16, 2026
10	Interstein	Indirect evidence	Münchwilen, SwitzerlandHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “Die Vertriebsmarke Interstein, wie sie sich heute auf dem Markt präsentiert, ist das Ergebnis einer jahrelangen, konsequenten Entwicklung, welche sich immer am Markt, d.h.” Source: RevenueBase Database · checked Sep 16, 2026
11	Hans Eisenring AG Natursteinwerk	Indirect evidence	Pfyn, SwitzerlandHQ checked Sep 16, 2026	1-10	7 contacts →
	Indirect evidence “In unserer Natursteinausstellung findet man neben Granit und Quarzstein auch Marmor und auch Edelsteine die für Boden, Wände oder Küchenarbeitsplatten verwendet werden können.” Source: RevenueBase Database · checked Sep 16, 2026
12	Ferronato AG	Indirect evidence	Ehrendingen, SwitzerlandHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “Ihr Werkzeugspezialist rund um Natursteine - Bei Ferronato finden Sie alles vom Schleifmittel über chemische Produkte bis zum Diamant- Werkzeug.” Source: RevenueBase Database · checked Sep 16, 2026
13	Stadelmann 1972	Indirect evidence	Bern, SwitzerlandHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “Our jewelry store at the Marktgasse 29 in Bern represents innovative creations in simple elegance.” Source: RevenueBase Database · checked Sep 16, 2026
14	Frieden AG Creative Design	Strong evidence	Thun, SwitzerlandHQ checked Sep 16, 2026	11-50	5 contacts →
	Strong evidence “The traditional jewellery manufacturer "FRIEDEN Swiss Jewellers"has been known for 120 years for high quality jewellery and exclusive gemstones in Thun and Switzerland.” Source: RevenueBase Database · checked Sep 16, 2026
15	Staudt AG	Indirect evidence	Zwingen, SwitzerlandHQ checked Sep 16, 2026	11-50	5 contacts →
	Indirect evidence “Seit 1993 steht die Staudt AG für Qualität, Fachkompetenz und individuelle Beratung in der Steinbranche.” Source: RevenueBase Database · checked Sep 16, 2026
16	Shiphra	Indirect evidence	Geneve, SwitzerlandHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence “First sustainable & ethical lab-grown diamonds high jewelry brand Shiphra is the first high-end jewelry brand that creates its pieces exclusively with the use of laboratory-grown…” Source: RevenueBase Database · checked Sep 16, 2026
17	Helvetic Diamond Exchange - Hdex.Ch	Indirect evidence	Lugano, SwitzerlandHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence “ur company specializes in the wholesale and retail trade of certified diamonds, also offers a wide range of classic jewelry with certified stones, custom creations and a small…” Source: RevenueBase Database · checked Sep 16, 2026
18	Sebex S.A	Indirect evidence	Genève, SwitzerlandHQ checked Sep 16, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
19	Groupe Reusse	Indirect evidence	Genève, SwitzerlandHQ checked Sep 16, 2026	11-50	3 contacts →
	Indirect evidence “Implanté dans le bâtiment des Cabinotiers et regroupant les sociétés CMR, Reusse & Cie et CN Précis; le Groupe Reusse est spécialisé dans le sertissage, la fabrication de…” Source: RevenueBase Database · checked Sep 16, 2026
20	Jade Artisan	Indirect evidence	Geneva, SwitzerlandHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “Established in 1989 in Taipei, now headquartered in Geneva.” Source: RevenueBase Database · checked Sep 16, 2026
21	Eckardt Natursteine AG	Indirect evidence	Volketswil (zürich), SwitzerlandHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “Eckardt Natursteine - Ihr Partner, wenn es um Natursteine geht!” Source: RevenueBase Database · checked Sep 16, 2026
22	Sudamerica Stones	Indirect evidence	Vernier, SwitzerlandHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “The reference in fine stones in Geneva!” Source: RevenueBase Database · checked Sep 16, 2026
23	Aline LTD	Partial evidence	Bern, SwitzerlandHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “We are a Swiss company specialized in the supply of high-quality coloured gemstones for prestigious watch and jewellery brands in Switzerland and throughout the world.” Source: RevenueBase Database · checked Sep 16, 2026
24	Crelier Fils SA	Indirect evidence	Porrentruy, SwitzerlandHQ checked Sep 16, 2026	11-50	2 contacts →
	Indirect evidence “Depuis 1923, notre société est spécialisée dans la fabrication et la vente de pierres en rubis et saphir pour l'horlogerie et l'industrie.” Source: RevenueBase Database · checked Sep 16, 2026
25	Green World Diamonds AG	Indirect evidence	Stadtkreis 1 Altstadt, SwitzerlandHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Luxury Lab-Diamond Jewelry real certified diamonds (IGI, GCAL, GIA) SustainableLaboratorygrown 80% less than Mined-diamond Price +41 76 360 88 88 (Call & What’s App)…” Source: RevenueBase Database · checked Sep 16, 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: gemstone 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 gemstone manufacturers.
Partial evidence: Its own public description names part of gemstone manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name gemstone 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 25 of 113 gemstone manufacturers based in Switzerland

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Gemstone manufacturers based in Switzerland at a glance

As of Sep 16, 2026

26.9%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

9.7%Largest-city concentration · Geneve

Sep 16, 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 Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 113 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 gemstone 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 Switzerland whose own description of what they do matches “gemstone 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 gemstone 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 gemstone manufacturers, and records with no verified work email. Companies headquartered outside Switzerland 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, 197 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 16, 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 gemstone 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 gemstone manufacturers are there based in Switzerland?

RevenueBase identified 113 gemstone manufacturers headquartered in Switzerland 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?

Niru Group, headquartered in Plan-Les-Ouates, tops this list with the largest team on record.

Which city has the most gemstone manufacturers?

Geneve leads with 11 headquartered companies, followed by Geneva (10) and Zurich (9).

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 197 verified decision-maker contacts tracked across these 113 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 16, 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.