钻石国检证书和GIA证书有什么区别

       钻石国检证书和GIA证书区别

       shouxian，zheishilianggeguojiadiyubutongqiedulidequanweijiancejigou，shenshibiaozhunshiyouyidingqubiede。giadejiancebiaozhunbijiaoqingxiangyuzuanshideqiegong，erngtcdejiancebiaozhunqingxiangyuzuanshideyanseyujingdu；gia zhengshudeshujubijiaoxiangxi，ngtczhengshudeshujuyouxiejianhua。

GIA证书

NGTC国检证书

       1、jiandingfangfaqubie：giajiandingshiyoujisuanjijiangzuanshigezhongshujujiluxialai，youjisuanjipingchuzuanshijibie。

       ngtcshirengongjianding，meigerendejiandingchiduyousuobutong，suoyihuiyouchayi。

       2、jiandingbiaozhunqubie：guojishangzuanshifenjibijiaotongyongdebiaozhunshigiabiaozhun，erzhongguozuanshifenjidebiaozhunzaiyanseshangshishixingdegiabiaozhun，danzaijingduheqiegongshangbijiaojiejinhrddebiaozhun，suoyijiandingbiaozhunyouqubie，jieguoyeyousuoqubie。

       3、yansejiandingqubie：giadeyansejiandingshijiandingdezuanshiyutongdaxiaodengjidebiaozhunsejizuanshixiangbi，quzuijiejindeyanse。

       ngtcbushimeijiajigoudouyoubiseshi，bingqiebiseshidedaxiaoyebingbuquan，ruguo1keladezuanshiqubijiaobiaozhundegse50fenzuanshi，jieguoziranbushitebietieqie。

       4、zhongliangsuanfaqubie：giadeluozuanzhongliang，shifeng9jin1，yejiushishuoruguoshi49.8fendezuanshizhisuan49fen，49.9fendezuanshisuan50fen。

       ngtcshixiaoshudianhou2weishichengde，yejiushi49.91fenyesuan49.91fen。

       5、qiegongpingjiaqubie：giaduizuanshideqiegongzhuyaoshiduichengxinghexiushidudepingjia，dui8xin8jiandeqiegongbutuichong，bubiaoming，zheigeyuhrdyuigiyousuobutong。qiegongdengjifenwei5dang：poor，fair，good，very good，excellent；

       ngtcdeqiegongzhixiesandang：yiban，hao，henhao，eryixiejiandingjigoujibenbukaihenhao。

       giayikelayishangdezuanshidaoguojianfujian，jibenshangdounenganzhaoyuanjibiechujujiancezhengshu。zongzhi，zheiliangzhongjiancejigougeyouqianqiu。jiyuduipinzhideyangeyaoqiu，woaizuanshiwang30fenjiyishangdezuanshibudantigonggiaguojijiancebaogao，lingwaihuitigongyifenguojiajijiancezhengshu，bianyukehufujian，genghaodebaozhenglezuanshidepinzhi，gongkehuanxintiaoxuan。