Not sure if the stone described in the Gübelin Gem Lab document is the same as the one in your hand? To get certainty in such situations, we offer the Free Integrity Test. It enables verification of whether a gemstone matches the data of a Gübelin Gem Lab report.

This check provides transparency for report holders and trade professionals, confirming that a gemstone has not been altered or substituted since certification. The service forms part of the Gem Lab’s broader commitment to protecting the integrity of the gemstone market through scientific authentication and traceability.