GRS GemResearch Swisslab AG is a private independent gemological research laboratory specialized on the issuance of origin and authenticity reports on rubies, sapphires and emeralds as well as other important coloured gems including spinel, tourmalines, garnets and jade.
The research laboratory is highly equipped to identify today's advanced treatments. Regular trips to most important mines in the world are presented in documentaries and our own book series "Contributions to Gemology".
GRS is specialized in analyzing
and other colored gemstones
GRS research activities / publications
Books "Contributions to Gemology"
Mine Expeditions & Documentaries
In-house high tech analysis
Issuance of gemstones reports
September 18, 2014GRS Seminar: 2:30 - 5:30pm, Room S228, HKCEC - Part A: Mozambique Rubies - The New Star in the Market, Part B - A Trip to Mogok (Documentary)