4 lieux mis à jour Juillet 16, 2013
4 lieux y compris Asian Institute of Gemological Sciences (AIGS), GIA Labboratory Bangkok, The Gem and Jewelry Institute of Thailand (GIT), The Gemmological Association of Great Britain (Gem-A)
6 lieux mis à jour
6 lieux y compris Lumphini Park, Jewelry Trade Center, China Stone, Multicolour Gems Ltd
11 lieux mis à jour
11 lieux y compris Jewellery Quarter, The Gemmological Association of Great Britain (Gem-A), Hong Kong International Airport, The Gem and Jewelry Institute of Thailand (GIT)