The Leader in Augmented Reality Gemstone Reports

GRS GemResearch Swisslab AG is a private and independent gemmological laboratory specializing in the issuance of origin- and authenticity reports for colored gemstones. GRS tests rubies, sapphires, emeralds and other important colored gemstones such as e.g., spinels, tourmalines and garnets.

GRS's six laboratories are strategically located in key global sites and equipped with the latest sophisticated technology to recognize and identify advanced gemstone treatments. Ongoing research efforts paired with expeditions to the world’s most important gemstone mines appear in our own film documentaries and book series «Contributions to Gemmology».

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Reports &
Rarity Awards

GRS gemstone reports are issued for individual loose gemstones, gemstone pairs, gemstone sets, as well as for mounted jewelry (rings, ear clips and necklaces etc.), providing the mounting allows for adequate testing.

More about GRS Reports

Reports &
Rarity Awards

GRS gemstone reports are issued for individual loose gemstones, gemstone pairs, gemstone sets, as well as for mounted jewelry (rings, ear clips and necklaces etc.), providing the mounting allows for adequate testing.

More about GRS Reports

Report Verification

Please fill in all the fields below exactly as they appear on the GRS report to facilitate authenticating your report. All fields are case sensitive. If you encounter any difficulty in authenticating your report, please refer to the Report Search FAQ or contact us via email.

Order Books &
Publications

All our books and publications are available in our online shop. Our latest book "Magnificent Green" illustrates a fascinating journey into the Colombian emerald world told by its own people — miners, patrons, cutters, brokers and jewelers.

Visit our Shop

Order Books &
Publications

All our books and publications are available in our online shop. Our latest book "Magnificent Green" illustrates a fascinating journey into the Colombian emerald world told by its own people — miners, patrons, cutters, brokers and jewelers.

Visit our Shop

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Worldwide Locations

Our laboratories are strategically located across Europe, Asia, and North America. We are pleased to offer various options for submitting your property to our laboratory near you.