为什么买钻石一定要有钻石证书

       钻石zhengshu，yekeyichengzuozuanshifenjizhengshu（diamond grading report）、zuanshizhiliangbaozhengshu （diamond quality report），shiduizuanshiyi4cbiaozhunweijichu，youzhubaozhuanjiazaitedingdehuanjingxia yijuyangedefenjibiaozhunzixiguanchahejiancezuanshixingchengdeyifenbaogao。qizhongjiangzuanshizhiyushibeifangdajing xiafenxitadechicun、jingdu、qiegong、paoguang、duichengdengtexingshihenzhongyaodeyigehuanjie，lingwaihaibaokuoque dingzuanshideyansejibie，yingguangjiancedeng。

       zuanshidejiazhi，juedingyuzuanshide4c，zuanshijiandingzhengshuyourenchengzhiweizuanshidediwugeczi （certificate）。zuanshidejiandingzhengshujiurutongzuanshideshenfenzheng，shangmianzaimingletadegexiangxijie。dui yuguangdaxiaofeizhelaishuo，lejieyikezuanshizuihaotujingjiushihuodeyifenquanweidezuanshijiandingzhengshu。

       guojishanggongrendezuiquanweidebaoshirenzhengzhengshushimeiguobaoshixueyuan（gia）renzhengzhengshu。chulegiawai，guo jishangbijiaoquanweidehaiyoubilishidehrd,meiguobaoshixiehuideigideng。zaiwomenguonei，zhuyaojiushingtcdeng guojianzhengshu。

       钻石证书功用

       zhenjiajianding：fanshijuyouzuanshijiandingzhengshude，xianranshizuanshierbushitazhongbaoshihuozuanshidefangmaopin。

       4cjilu：jiandingzhengshushangjizaizhongliang、chicun、yingguangfanyingdeng，doushibianbiegaikezuanshidetezheng。youqi futushangsuomiaohuachulaizuanshibiaomiantezhenghuoneihanwu，gengshibianrenshangdemingquezhishi，ruoweihuachuzuanshibiaomian tezhenghuoneihanwu，yiweijiashuomingdezuanshijiandingzhengshu，biansangshilecigongneng。

       4czhiliang：zuanshidezhongliang、chengse、jingdu、qiemogong(suchengchegong)jibilv，junxiangxizaimingyujiandingzheng shushang，yincijiandingzhengshushangshizuanshizhiliangdefenxijilu。

       yiban30fenyixiadezuanshishimeiyougiazhengshude，30fenyishangdezuanshicaiyou。dajiazaigoumaizuanshideshihou，ruomeiyougiazhengshuhuozheduigiazhengshuxinyouyilv，keyidaozhidingdezhuanyeguojianbumenjinxingjiance。