...室在行业内拥有最高的权威性,其证书流通世界各地,行业前沿的AIGS ——Asian Institute of Gemological Sciences(亚洲宝石科学院)GIT —— 请问AIGS证书是曼谷亚洲宝石科学院的证书上面标注了HT(a2)鸽血红宝石是什么意思 H应该是加热处理，那个T就不知道，(a2)...
abstract:The Asian Institute of Gemological Sciences (AIGS) is a private gemological school and gemological laboratory based in Bangkok, Thailand. The AIGS was founded in 1978 and was Thailand's first educational facility devoted to the study of gemstones.