国家黄色钻石分级标准和GIA的区别有哪些

       xiangxindabufenxiaofeizhedouzhidao，zuanshidetiaoxuanheqi4cfenjiyouhendaguanxi，erhuangzuanyebuliwai。zhiqianzaipingjiayimeihuangzuandengjihepinzhishidoushicanzhaogiafabude4cbiaozhun，danzai17nianshiwoguoyezhidingle《huangsezuanshifenji》guojiabiaozhun，duihuangzuanpinzhijibiejinxingkexuepingjia，rujingaibiaozhunyijingkaishishishi，neimeguojiahuangsezuanshifenjibiaozhunhegiadequbieyounaxie？

       zailejieguo《huangsezuanshifenji》guojiabiaozhunsuoshuneirongzhihoukeyifaxian：giaanzhao4c（yanse、jingdu、qiegonghekelazhongliang）laiduihuangzuanjinxingfenji；er《huangsezuanshifenji》guojiabiaozhunzecongyanse、jingdu、zhiliangdengfangmianduihuangsezuanshijinxingjibiehuafen，bingduiqiqiegongjinxingpingjia。

       黄钻颜色分级区别

       giahuangzuanyanse

       giacaizuanfenjixitongjianghuangsezuanshiyansehuafenweiliugedengji：fancy light yellow（dancai）、fancy yellow（cai）、fancy intense yellow（nongcai）、fancy vivid yellow（yancai）、fancy deep yellow（shencai）、fancy dark yellow（ancai）。tongsudelaishuo，huangzuandeyuemingyanyansedengjiyuegao。

       《huangsezuanshifenji》guojiabiaozhun——yanse

       《huangsezuanshifenji》guojiabiaozhunzhongdeyansefenjibaokuolehuangzuandesediao、caidu、mingdu、yansejibiemiaoshu、junyunxingmiaoshudengfangmian。

       sediao：genjuhuangsezuanshisediaodechayi，huafenweisangeleibie。sediaoleibieyicibiaoshiweihuang（y）、weilvhuang（gy）heweichenghuang（oy）。

       caidu：genjuhuangsezuanshicaidudechayi，huafenweisigejibie。caidujibieyougaodaodiyicibiaoshiweiyancai（fancy vivid）、nongcai（fancy intense）、cai（fancy ）、dancai（fancylight）。

      ; mingdu：genjuhuangsezuanshimingdudechayi，huafenweisangejibie。mingdujibieyougaodaodiyicibiaoshiweiliang（v1）、ming（v2）、an（v3）。

       yansejibiemiaoshu：guojianbiaozhuncaiyong“mingdu + caidu + sediao”defangfaduihuangsezuanshideyansejibiejinxingbiaoshu， ruxiatuzhong，guojiazhubaoyushizhiliangjiandujianyanzhongxin（ngtc）chujudezuanshifenjizhengshuzhong，yansefenjidebiaoshuwei“liangdancaihuang v1 fancy light yellow”。

       junyunxingmiaoshu：congguanbuguanchahuangsezuanshideyanse，genjuqiyanseshifoujunyun，jichu“junyun”huo“bujunyun”demiaoshu。

       黄钻切工分级区别

       giahuangzuanqiegong

       giahuangzuanqiegongfenjiyiranyanyongwusezuanshidebiaozhun，yiduicheng、bili、qiegongsangefangmianweizhu，duihuangzuanqiegongjinxingdengjihuafen。

       《huangsezuanshifenji》guojiabiaozhun——qiegong

       《huangsezuanshifenji》guojiabiaozhuntongguoceliangheguancha，congbilv、duichengxinghepaoguangsangefangmianduihuangsezuanshijiagonggongyijinxingpingjia。

       yiqiceliangfangfa：shiyongqiegongbiliyi、yingxiangyi、weichideng，zhijieduigeceliangxiangmujinxingceliang。bilvdepingjiashitongguoshiyongxiangguanyiqiduizuanshidegeceliangxiangmujinxingceliangdezonghepanding，celiangxiangmubaokuoduanzhou、taimian、yaohou、quanshendeng。

       yaohou：genjuyaohoubizhidedaxiao，jiangyaohoufenweiwugejibie，yaohouyouhouzhiboyicibiaoshiweihenhou（very thick）、hou（thick）、zhongdeng（moderate）、bo（thin）、henbo（very thin）。

       duichengxing：duichengxingjibiefenweijihao（excellent，jianxiewei ex）、henhao（very good，jianxiewei vg）、hao（good，jianxiewei g）、yiban（fair，jianxiewei f）sigejibie。

黄色钻石净度、重量等级划分

       《huangsezuanshifenji》guojiabiaozhunzhongguanyuhuangzuandejingduhezhiliangdebufenshangbuxiang，yibankeyiyigiabiaozhunweicankao。

       huangsezuanshijingdu

       duiyuhuangzuandengcaisezuanshilaishuo，yanseshijuedingqijiazhideguanjianyinsu。jibianhuangzuanneiyoubushaoneihanwuxiaci，daozhitamenjingdudengjijiangdi，danruguotamenzhengmianchaoshangnengchengxianyouxiyinlideyanse，renghuishoudaoshichangzhuipeng。dangranzaitiaoxuanhuangsezuanshishi，duiyuhuangzuanjingdufangmianziranyeshijibieyuegaoyuehao；huangzuanyuwusezuanshiyiyang，qijingdujibiebeihuafenweifl、if、vvs1、vvs2、vs1、vs2、si1、si2、i1jii2。qizhongflshizuigaodengji（wuxiaci），i2shizuididengji。

       huangsezuanshizhongliang

       duiyuhuangsezuanshizhongliangjibiedehuafenjiubijiaorongyilijie，ziranshizuanshiyuedadengjiyuegao，wulunshiwusezuanshihaishihuangsezuanshi，doushizhongliangyuedadeyuexiyou，ziranjiageyebijiaoanggui。zaizuanshizhongliangfangmian，huangsezuanshizaishichangzhongbijiaochangjiandewei30fen-50fen，zheileizuanshidejiaweiduiyudaduoshurenlaishuohaishikeyijieshoude。

       yishangjiushiguanyuhuangsezuanshifenjiguojifenjibiaozhunhegiabiaozhundexiangguanjieshao，qishitongguoyishangneirongkeyifaxian，guojianbiaozhunhegiabiaozhundechabiebingbusuanda，danzaixiaoshouhuangsezuanshidengcaizuanshi，womenyibanweixiaofeizhetigonggiaguojijiandingzhengshu，yigongxiaofeizhechazheng。