钻石证书的四大权威认证机构，钻石的权威证书有哪些

guoneizhuanyerenshijiaoweituichongdequanweixingzuigaodesidazuanshizhengshujiandingjigoufenbieshiigi、gia、hrdhengtc，yibanzuanshizhiyaozheisidajiancejigouchujudezhengshu，zaiquanguofanweineidoushiliutongde。qizhonggiashizuishouquanqiurenkedezhengshu，jinggiajiandingdezuanshikezaiquanshijieliutong。

钻石的权威证书有哪些

钻石的权威证书分别为GIA证书、IGI证书、HRD证书、NGTC证书。其中GIA证书、IGI证书、和HRD证书可以全球通用，而NGTC证书为国内主流的钻石等级鉴定证书，被称做国检证书。

根据现在国内的行情，如果是一克拉以下的钻石，很多商家只提供NGTC等国检证书，且多为成品钻戒证书。部分有实力的裸钻定制商家可以为30分及以上的钻石出具GIA证书。

钻石证书的四大权威认证机构

1、GIA

yingwenquancheng：gemological lnstitute of america

zhongwenming：meiguobaoshixueyuan 

meiguobaoshixueyuanchengliyu1931nian，tachuangzaoleyanyongzhijindezuanshi4cfenjixitong，bingbazuanshijiandingtuixiangguojihua。zuoweiquanshijiezuiquanweidezhubaojiandingsuo，giadegongzhengxingburongzhiyi，zaiquanqiufanweineidoushenshourenkedu。

2、HRD

yingwenquancheng：hoge raad voor diamont

zhongwenming：bilishizuanshigaojiecengyihui

yu1973nian，chengliyuzuanshiqiegezhongxinbilishianteweipu，yuguojizuanshiweiyuanhuigongtongqicaole“guojizuanshifenjibiaozhun”idcbiaozhun。hrdduiyucaisezuanshiyansedengjihetianranxingdejiandingyouweituchu。

3、IGI

yingwenquancheng：the institute ofgemology

zhongwenming：guojibaoshixueyuan

1975nianchengliyushijiezuanshizhongxinanteweipu，shijieshangzuidadedulizhubaoshoushijiandingshiyanshi，zaiquanqiugedazuanshijiaoyizhongxinsheyoushiyanshi，qiwendingxingshoudaoyejiedeguangfantuichong，rumont blanc, cartier，escadadengguojipinpaidouxuanzeigitigongjiandinghuopeixunfuwu。

4、NGTC

yingwenquancheng：nationalgems&jewelry technology administrative centre

zhongwenming：guojiazhubaoyushizhiliangjiandujiancezhongxin

chengliyu1993nian，shiguoneiweiyiyigehegiajigouhezuodezhubaozuanshijiandingzhongxin。ngtczhengshushuyuzhongguodeguojiaxingzhichushiderenzhengzhengshu，shiguoneizhubaoyushijiancefangmiandequanweijigou。

zuanshizhengshushiduizuanshizhenjiayijipinzhidezhengming，fudaiquanweijiandingzhengshudezuanshigengzhidexinren，goumai50fenyishangdejiazhijiaogaodezuanshishi，jianyiyidingyaoyougiazhengshu，quanweibaozhang，gengfangxin。