GRS GemResearch Swisslab AG is an independent gemological research laboratory specializing in determining the origins of, and generating authenticity reports for, rubies, sapphires, and emeralds as well as other important colored gems including spinel, tourmaline, and garnet.
Company NameG R S LANKA PVT LTD
Products / Services RangeGemstones certificates & GRS magazine (Contribution to Gemology)
General Contact Info
Address 471 3/1 Galle Road, Colombo 03, Sri Lanka.
Telephone(94) 112 500 666
Fax(94) 112 599 466
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