Worldwide Locations
GRS Switzerland

Shipping & Laboratory Address

GRS Gemresearch Swisslab AG
Baldismoosstrasse 14
6043 Adligenswil
Switzerland

T: +41 41 210 31 31
F: +41 41 210 31 34
swiss@gemresearch.ch

Meeting Room and Reception of Stones (by appointment only)

GRS Gemresearch Swisslab AG
Habsburgerstrasse 12
6002 Luzern
Switzerland

Correspondence Address

GRS Gemresearch Swisslab AG
P.O. Box 3628
6002 Luzern
Switzerland

Independent Cooperating Laboratories

Hong Kong

GRS Lab (Hong Kong) Limited
Unit B, 6th Floor,
9 Queen’s Road Central,
Hong Kong

T: +852 2376 3888
F: +852 2368 3888
hk@gemresearch.ch

Thailand

DR Peretti Co., Ltd.
Unit 501-506, Silom 19 Building
Soi 19, Silom, Bangrak
Thailand

T: +66 2237 5898 / +66 2000 4628
F: +66 2237 5899 / +66 2000 6167
info@gemresearch.ch

Sri Lanka

GRS Lanka (PVT) Ltd
471 3/1 Galle Road
Colombo 3
Sri Lanka

T: +94 112 500 666
F: +94 112 582 493
srilanka@gemresearch.ch

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