裸钻怎么选性价比高？买裸钻需要注意什么？

tiaoxuanluozuanqian，shouxianxuyaolejieyixiazuanshide4cfenjipingjiatixi。zuanshi4cfenjizhideshicongyanse(color)、jingdu(clarity)、zhongliang(caratage)、qiegong(cut)zheisigezhuyaofangmian，duizuanshijinxingzonghepingjia，jinerquedingzuanshidejiazhi；youyuzhei4geyaosudeyingwenjunyickaitou，suoyijianchengwei“4c”fenji。

kelazhongliang：yigongzhikelabiaoshideceliangdanwei，biaoshizuanshidezhongliang、zhilianghuodaxiao。

yanse：zai d dao z deyansefanweizhong，yanseyueqiandezuanshiyuehanjian，jiazhiyuegao。

jingdu：zhizuanshineihanwudecunzaiqingkuanghebiaomiantezheng。

qiegong：zuanshikemianyuguangxiandexianghuzuoyongqujueyuzuanshiqiegongdepinzhi。

裸钻怎么选性价比高

①quedingzuanshi4cxianhoushunxu

keyishouxianzhidingyusuan，binglejiezuanshipinzhiyaosu，quedingnage“c”duizijizuiweizhongyao。

ruguozuanshidewusechengduzuixiyinni，neimezuanshiyansejiushizuizhongyaodeyidian；ruguoxiangyaoyikeneihanwuhebiaomiantezhengjiaoshaodezuanshi，neimejingdujiangshizuizhongyaode；ruguoxiangyaoyikemingliangshanyaodezuanshi，neimeqiegongzhiliangjiangshizuizhongyaode；ruguozhongshizuanshidewaiguanchicun，neimekelazhongliangjiangzuiweizhongyao。

quedingzuanshi4cdeyouxianshunxu，fangbianquedinggezidegoumaicezhongdian，yibianyuyongyouxiandeyusuanmaidaogengfuhezijixiaidezuanshi。

②baochiluozuandeshijuemeili

ruguonibushiwanmeizhuyizhe，neimeduiluozuandengjijiumeibiyaoyouneimegaodeyaoqiu。keyixuanzejibiemeiyouneimegao，danrouyanguanchayehenjuyoumeilideluozuan。

biru30-50fendeluozuankexuan si1、i-j、exjibie；50fen-1kelaluozuankexuanvs、h、exjibie；1kelayishangluozuankexuanvvs、g、exjibie；

zheiyangdeluozuansuiranpinzhibusuanjigao，danrouyanguanchabingmeiyoushenmemingxiandeyingshang，jiageyebianyihenduo，shuyugaoxingjiabiluozuan。

买裸钻需要注意什么

①确定预算

luozuanjiageyougaoyoudi，congjiqianyuandaojiwan、jibaiwan、shangyiyuanbudeng。luozuanjiagechajuxuanshu，yinciquedinghaogoumaiyusuankedadasuoxiaoluozuanxunzhaofanwei，gengjieshengluozuangoumaishijian。

②观察裸钻证书

tongguoshangjiakeyizhidaoluozuandedengji，danduiyuxiaofeizheeryan，keyitongguoluozuanzhengshulejieqizhengquedejibie。

③lejiebutongpinpaideluozuanjiage

zaigoumailuozuanshikeyifaxian，tongyangpinzhijibiedeluozuan，zaibutongpinpaideshoujiashibuyiyangde，yinciduibibutongpinpaidebaojia，keyimaidaogengjuxingjiabideluozuan。