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DirectoryBusiness & Technical ServicesResearch & DevelopmentLucerneGRS Gemresearch Swisslab AG
GRS Gemresearch Swisslab AG Logo
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GRS Gemresearch Swisslab AG

Summary

About the company

GRS Gemresearch Swisslab AG is an independent gemological research and testing laboratory that determines origins and issues authenticity reports for colored gemstones such as ruby, sapphire and emerald, as well as spinel, tourmaline and garnet. The laboratory produces reports for loose gemstones, pairs and mounted jewellery and provides online report verification, research publications and related services.

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Gemstone Reports
Gemstone reports for loose gemstones, pairs, sets and mounted jewellery; include identification, authenticity, treatment and country-of-origin opinions for coloured gems such as ruby, sapphire, emerald, spinel, tourmaline and garnet.
Gemstone Report Verification
Online verification of GRS gemstone reports by report number, date and weight, or by scanning the QR code printed on the report; available free of charge.
Gemstone Enhancement Disclosure
Disclosure and grading of gemstone treatments, including heat treatment in ruby and sapphire, clarity enhancement in emerald, and other treatments such as coating, dyeing, oil, resin and irradiation.
Laboratory Testing and Submission Services
Stone submission, shipping instructions and turnaround options for laboratory analysis in Switzerland and other locations; includes regular, priority and express service arrangements.
Gemological Research Publications
In-house publications on gemology, including the 'Contributions to Gemology' series in hard copy and digital PDF form, with topics on gemstone origin, identification and treatments.
Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 6 reviews across all connected sources

Sources
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Location

Habsburgerstrasse 12
6002 Lucerne
Opening hours
Mon
09:00 - 12:00, 13:30 - 17:00
Tue
09:00 - 12:00, 13:30 - 17:00
Wed
09:00 - 12:00, 13:30 - 17:00
Thu
09:00 - 12:00, 13:30 - 17:00
Fri
09:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.206.451
Founded
1996 · 30 years
Last commercial register change
July 6, 2026
Employees
21 to 50

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