了解GIA钻石证书,GIA的成立
meiguobaoshixueyuan gemological institute of america dechuangbanrenrobert m. shipleyyu1931nianzaimeiguolos angeleschengligia,zuichushiyongyexiaojihanshoufangshixunlianzhubaoshangruhepinggupifajia,1953niangiazainew yorkchuanglilediyisuoshiyanshi laboratory,kaishiqianfazuanshijiandingbaogaoshu,erhouyouzaijiazhoushengtamengnika santa monica jilashiqushelilingliangge laboratory,zhengshimingchengweibaoshiyejiandinggongsi gem trade laboratory .inc (gtl),gtllishuyugiazhuanzhijiandingbugujia。
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了解GIA钻石证书,GIA的成就
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GIA校园外观
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