Contacts & Links


The following world-renowned gemmological laboratories (listed in alphabetical order) are represented within the LMHC.

CGL Laboratory

Tokyo, Nagoya, Osaka and Fukuoka in Japan

CISGEM Laboratory

Milan, Italy

DSEF German Gem Lab

Idar Oberstein, Germany

GIA Laboratory

Carlsbad and New York, USA

Bangkok, Thailand

GIT- The Gem and Jewelry Institute of Thailand

Bangkok, Thailand

Gubelin Gem Lab Ltd.

Lucerne (Switzerland), Hong Kong and New York

Swiss Gemmological Institute SSEF

Basel, Switzerland

Useful references & Links

IMA (International Mineralogical association)

IMA list of minerals