GRS Gemresearch Swisslab AG
P.O. Box 3628, 6002 Lucerne, Switzerland
Public limited company of Canton of Lucerne, Switzerland
GRS Lab (Hong Kong) Ltd.
Unit G 6/F
9 Queen's Road
Central
Hong Kong
Phone: +852 2376 3888
Fax: +852 2568 3888
DR Peretti Co., Ltd.
Jewelry Trade Center, Room 919/257, 20th Floor, North Tower
Silom Road, Bangrak, Bangkok 10500, Thailand
Phone: (66+2) 237-5898 & 630-0112
Fax: (66+2) 237-5899 & 630-0114
GRS Lanka (PVT), Ltd.
Galle Road 471 2/1
Colombo 3
Phone: 94-11-2583326
FAX: 94-11-2582493
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GRS GemResearch Swisslab AG
P.O. Box 3628, CH-6002 Lucerne Switzerland
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