Mine expedition Colombia Dr. Adolf Peretti
High tech analysis, copyright GRS
Inclusions in a sapphire from Kashmir, copyright GRS
GRS Aims For the Highest Pinnacle in Gemmological Research
GRS GemResearch Swisslab AG is a private independent gemological research laboratory, specializing in the determination of origin and authenticity reports for ruby, sapphire and emerald plus other important coloured gems including spinel, tourmaline, garnet and jade. Our research laboratories, strategically located in key global sites are equipped with the latest most sophisticated technology to recognize and identify today’s advanced gemstone treatments. Ongoing research conducted via expeditions to the world’s most important mines appears in our own film documentaries and book series, Contributions to Gemology.
Thorough research is the key to ensure public confidence in the true value of gems.