买钻石注意什么？买钻石应该怎么问

goumaizuanshishi，henduorenshouxianxunwendejiushizuanshijiage，erchuzuanshijiagezhiwai，zuanshidepinzhijibie、chicundaxiao、zhengshuzizhidengqueyoushibeixiaofeizhehushi，neimemaizuanshiyinggaizenmewen？putongrenmaizuanshizhuyishenme？xiamianfenxiangyixiemaizuanshishiyinggaixunwendewenti。

1、xunwenzuanshi4czhiliangruhe

4cshizuanshidengjihuafenbiaozhun，baokuozuanshidezhongliang、yanse、jingdu、qiegongzheixie。keyishuo，zuanshi4cduiqijiageyoujuedingxingdeyingxiang，yincizaigoumaizuanshishishouxianyinggaixunwenzuanshide4czhiliangruhe。yijixunwenkefurenyuan，gaizuanshide4cdengjizaisuoyoupinjihuafenzhongchuyushenmeweizhi，birushishuyupinzhidengjigaodehaishipinzhidide。

2、xunwenzuanshizhengshuchuzhengjigoudequanweixing

zuanshizhengshushijiluzuanshijibiedezhengmingshu，jihumeiyikezuanshidouyouyifenjiandingzhengshu，jibianshi0.1kelazuanshiyekeyizaiguojianbumenjinxingjibiejiandingbingchujuzhengshu。danbingbushisuoyoudezhengshudoujubeiquanweixing，xianggiadengguojitongyongdezhengshuziranquanweixingshiwuyongzhiyide，erguojianzhengshufangmianrungtczhengshu、giczhengshudengyedoushiyejiequanwei。

附：

zuanshizhengshushifouquanweikeyigenjutamendezizhibiaoshilaikan，guoneizhubaojiandingshiyanshidezizhirenzhengyou：cma（china metrology accreditation(zhongguojiliangrenzheng/renke)）、cal（chinaaccredited laboratory(zhongguorenzhengshiyanshi)desuoxie）、cnas（china nationalaccreditation service for conformity assessment(zhongguohegepingdingguojiarenkeweiyuanhui)）、ilac（international laboratory accreditation cooperation）guojishiyanshirenkehezuozuzhi。

qizhongzuinannadaodeshical zaidaocma zaidaocnas，ruguozuanshideguojianzhengshudaiyouzheijigezizhi，shuomingzheileizhengshushibijiaoyanjinde，yekeyibiaomingqiquanweixing。

kexunwensuoxuanzuanshifudaideshinagejigouchujudezhengshu，bingtongguowangluochaxunqishifoujuyouquanweixing。

3、xunwenzuanshizhongliangjiguigechicun

zuanshi4cguranshifanyingzuanshipinzhideguanjian，dantongguochicundengfangmianyekeyilejieqipinji。biaozhunqiegedezuanshigengnengtixianzuanshidecuicanmeili，biru1kelayuanxingzuanshidebiaozhunzhijingchicunwei6.5mm、gaoduchicunwei3.9mm，2kelayuanxingzuanshibiaozhunzhijingchicunwei8.2mm、gaoduchicunwei4.9mm。

zaitiaoxuanzuanshishikeyixunwenyixiaqizhongliangjichicunguige，yubiaozhunchicunshujuduibi，chabiezai0.2mmzhineidoushikeyikanchengwanmeide。

4、zuanshideyingguangqiangruoruhe

yingguangshizuanshizaiziwaiguangxiadeyizhongxianxiang，youdezuanshiyingguangxianxiangbijiaomingxian，shiweiqiangyingguang。youdezuanshimeiyouyingguangxianxiang，shiweiwuyingguang。ruguoshihenqiangliedeyingguang，kenengyingxiangzuanshideyansejihuocai。

zuanshiyingguangzaigiazhengshuzhongyoudengjimiaoshu，danguojianzhengshuzhongshimeiyouguanyuzheiyixianxiangdejieshaode，yincigoumaizuanshishikeyixunwenyixiazuanshiyingguangqiangruoruhe，yibianyuxuanzemanyidezuanshi。

5、yixingzuanyouhetedianheruodian

yixingzuanshiqubieyuyuanxingzuanshi，changjiandeyixingzuanyoushuidixing、xinxing、fangxing、ganlanxing、tuoyuanxingdeng。yixingzuanyiyouyuyuanxingzuanshixiangbizhixiadeyoushiyuquexian，birutongchangyixingzuanrongyixianchuhuangsediao，tebieshimayanxing、lixingzuan，henrongyiganjuedaohuangsediao，zhiyoudaogseyishangsejicainanyiguanchadaohuangsediao。

yincizaitiaoxuanzuanshizhiqianzuihaolejieyixiagegexingzhuangdeyixingzuandetedianyuruodian，zhihougenjuzheixietediantiaoxuanzijimanyidezuanshixingzhuang。

6、ruoxuancaizuan，xunwenzuanshiyanseshifoutianran

caizuandeyanseyoutianrande，danyekeyijiangputongzuanshiyifuzhao、gaowengaoyadengfangshichuli，zhiqibianchengqitayanse。zheizhongrengongchulierchengde“caizuan”ziranbunengchengweitianrancaizuan。youxiezuanshizhengshuhuizhijietishicaizuanshifoujingguochuli，yijichulifangshi，dangoumaicaizuanshirengranxuyaoxunwen，bijinghenduoguojianzhengshubingbuhuijizaiqiyansechulifangshi。

goumaizuanshishi，youkenengdehua，keyixiexiazuanshi，qinzichengzhongheceliangguige，biduizuanshizhengshusuozaishuju，lejiezhengshuzhongjiandingjieguodezhenshixing。