选购钻戒，GIA钻石证书上这几点要特别注意

giazhengshushimuqianguojishangzuijuquanweidezuanshizhengshu，xiangdangyuzuanshideshenfenzheng，xiaofeizhekeyizhijietongguogiazhengshulejiezuanshidegexiangdengjixinxi。danputongrenzaichakangiazhengshushi，youbushaojingchanghulvediaodexijie， biruzhengshujiandingriqi，zhengshuxinxilandeyixieteshubiaojidengdeng，xiamianfenxianggiazhengshuzhongxuyaotebiezhuyidejidian。

1、证书出具时间

tongchanggiazhengshudechujushijianyuejinyuehao，riqitaizaodezhengshu，henyoukenengshiershouhuishouzuanshi。

2、GIA证书编码

giazhengshubianmajiuxiangdangyuzuanshide“shenfenzheng”，cibianhaokeyiyonglaichazhengzuanshizhenwei。giabianmabujinzaizhengshushangnengkandao，haihuikeyinzaizuanshiyaobu，na10beifangdajingguanchazuanshiyaoleng，keyiduibizhengshuhezhengshubianmashifouyizhi。

3、钻石颜色信息

tongguozuanshizhengshukeyizhijiekandaozuanshiyansejibie。

ruxiatusuoshi，ruoyansedengjihoumianhaidaiyou“*”fuhao，yidingyaotebiezhuyi。yibanxiangzheiyangdebiaoshijiubiaoshizuanshiyanseshichuliguode，bujianyimai。（zhengshuzuixiafang，dui“*”fuhaoyeyoushuoming，keyiguanzhuyixia）

4、钻石净度

giazhengshushangbujintishizuanshijingdudengji，tongshigiadazhenghaihuiyouduiyingzuanshidejingdufenbutu，bianyuxiaofeizhelejiezuanshineihanwudefenbuweizhi、leixingdeng；

danyeyouxieneihanwuzaituzhongwufabiaoshi，neimekeyiguanchayixiazuanshizhengshuxiafangde“comments”bufen，kanyoumeiyounanyijieshoudeneihanwuleixing。