City:Tokyo
AGT Gem Laboratory
All types of Gemology. AGT GEM LABORATORY in agreement with the GIA, gives the GIA courses in Japan. Diamond grading, and colored stone grading.
Central Gem Laboratory
Diamond grading and gem identification, also has diamond museum. Diamond Cut grading standards based on AGL (Asian Gemological Laboratories Statndards, not to be confused with the AGL in the U.S.. Full range of X-ray and photospectrometry equipment.
Gem Science Laboratory
Diamond grading and colored stone grading reports and origin.
Gem Testing Center of Japan (GTC)
No further information at this time. Please contact laboratory directly.
Zenhokyo
Educational Programs: Based on an agreement with the Gemmological Association of Great Britain,GAAJ provides FGA ( Fellow of Gemmological Association of Great Britain) educational programs in Japanese. Apart from the FGA program, GAAJ provides CGJ (Cert ...