zuanshizhengshushixiaofeizhegoumaizuanshishidezhongyaocankaoyiju,guojifanweineidezuanshizhengshuzhongleiyouhenduozhong,qizhongzuiweichangjiandeyaoshugiazhengshu,xiamianwoaizuanshiwangweininjieshaochangjianzuanshizhengshuyounaxie,yijinazhongzuanshizhengshubijiaoquanwei。
常见的钻石证书种类
guojizhengshu
guojishangliutongxingdazuanshidezhengshuyou gia、igi、hrd、egldengsige。
1、gia——meiguobaoshixueyuan(zuanshi4cdengjibiaozhunzhidingzhe)
2、igi——guojibaoshixueyuan
3、hrd——bilishizuanshigaocengyihui
4、egl——ouzhoubaoshixueyuan
guojianzhengshu
1、ngtczuanshifenjizhengshu——guojiazhubaoyushizhiliangjiandujianyanzhongxin
2、gicxiangqianzuanshifenjizhengshu——zhongguodizhidaxuebeijingdidabaoshijianyanzhongxin
国检证书是国际证书之外最常见的一种,其中NGTC (国家珠宝玉石质量监督检验中心),是和GIA机构合作的珠宝钻石鉴定zhongxin,shuyuzhongguodeguojiaxingzhichushiderenzhengzhengshu。ngtczhengshubujinzhenduiluozuandejianyan,erqiehaikeyijianyanzuanshijiezhidengxiangqianzuanshidechengpinshoushi。chucizhiwai,guoneizuanshijiandingzhengshuhaiyougicdeng。
哪种钻石证书比较权威
yishangweidajialuoliedezuanshizhengshudoushibijiaoquanweide,shenshouyeneirenshihexiaofeizhederenke,qizhongzuiweidajiashuzhideshigiaguojizuanshizhengshu。zaixuangouzuanshiguochengzhong,ruguoshi30fenjiyishangdaxiaodedazuankeyiyigiazhengshuweibiaozhun;xiaofenshuzuanshikeyibaguoneidengtc、giczuanshizhengshuzuoweiquanweicankao,bingqieguoneijiandingzhengshugengshiyongyuguoneizuanshigoumaiqingkuang。
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