Company lists · Data refreshed September 2026

Top 17 Gemstone dealers based in Switzerland

RevenueBase identified 77 company matches for gemstone dealers associated with Switzerland as of September 2026 and tracks 225 professional contacts across them, including 60 with verified work emails. Geneva is the largest hub.

This list covers company matches for gemstone dealers associated with Switzerland, 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 September 20, 2026.

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 Sep 20, 2026 How this list was built
77Companies
225Contacts tracked
60Verified emails
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The 17 largest gemstone dealers based in Switzerland

Ranked by team size
Top 17 of 77 company matches for gemstone dealers based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchGeneva, SwitzerlandHQ recorded Sep 20, 202611-5023 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 · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBatiment Aerogare Fret 1211, SwitzerlandHQ recorded Sep 20, 2026501-1,00020 contacts →

Exact match

“pursue perfection and excellence at every stage." Diacore, a multinational company, has diversified interests in the diamond industry providing rough and polished diamonds to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchHorgen, SwitzerlandHQ recorded Sep 20, 202651-20010 contacts →

Exact match

“Lab-S Group is the world’s leading lab-grown diamond company, with expertise in diamond production, cutting, polishing, grading, marketing, and retail.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchGeneva, SwitzerlandHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Avinas was founded in 2012 by Fabienne Ymar Fryba, a Swiss jewelry designer, who trained in New York.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchThun, SwitzerlandHQ recorded Sep 20, 202611-505 contacts →

Exact match

“The traditional jewellery manufacturer "FRIEDEN Swiss Jewellers"has been known for 120 years for high quality jewellery and exclusive gemstones in Thun and Switzerland.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLugano, SwitzerlandHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Online.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLugano, SwitzerlandHQ recorded Sep 20, 20261-104 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchVillars Sur Ollon, SwitzerlandHQ recorded Sep 20, 20261-103 contacts →

Exact match

“We are the Co-Founders of Understanding Jewellery, a new online business through which you can subscribe to the contents of our seminal reference work of the same name.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchGeneva, SwitzerlandHQ recorded Sep 20, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchVolketswil (zürich), SwitzerlandHQ recorded Sep 20, 20261-103 contacts →

Exact match

“Eckardt Natursteine - Ihr Partner, wenn es um Natursteine geht!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchVernier, SwitzerlandHQ recorded Sep 20, 20261-103 contacts →

Exact match

“The reference in fine stones in Geneva!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchBern, SwitzerlandHQ recorded Sep 20, 20261-103 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchPorrentruy, SwitzerlandHQ recorded Sep 20, 202611-502 contacts →

Exact match

“Depuis 1923, notre société est spécialisée dans la fabrication et la vente de pierres en rubis et saphir pour l'horlogerie et l'industrie.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchStadtkreis 1 Altstadt, SwitzerlandHQ recorded Sep 20, 20261-102 contacts →

Exact match

“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)…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchLuzern, SwitzerlandHQ recorded Sep 20, 20261-101 contacts →

Exact match

“Experience precious gemstones, divine jewellery and breathtaking timepieces at the House of Gübelin.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchZurich, SwitzerlandHQ recorded Sep 20, 20261-101 contacts →

Exact match

“La Serlas is a luxury goods & jewelry company based out of Zürich, Switzerland.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchZurich, SwitzerlandHQ recorded Sep 20, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 17 of 77 gemstone dealers based in Switzerland

See the full list, filter by size, metro and specialty, and access 60 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Gemstone dealers based in Switzerland at a glance

As of Sep 20, 2026
26.7%Verified-email coverage
2.9Average contacts per company
1-10Median size (employees)
26.0%Largest-city concentration · Geneva
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
58
11-50
12
51-200
3
201-500
2
501-1,000
1

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 77 companies.

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.
What qualifies
Company records associated with Switzerland whose business descriptions match “gemstone dealers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 60 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 September 20, 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.

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 “gemstone dealers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many gemstone dealers are there based in Switzerland?

RevenueBase identified 77 company matches for gemstone dealers associated with Switzerland as of September 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?

Ggtl Laboratories Switzerland tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most gemstone dealers?

Geneva leads with 20 company records, followed by Zurich (9) and Lugano (4).

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 60 professional contacts with verified work emails tracked across these 77 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 September 20, 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.