购买钻戒时需要考虑的钻戒等级

　　duiyugoumaizuanjie，yibandouhuiyong4cbiaozhunlaihengliangzuanshidedengji，erbushixiangdajiapingchangsuoshuode“yuedayuehao”。suowei4cbiaozhunjiushishikela(carat)、yanse(color)、jingdu(clariyy)、qiegong(cut)，yinweizheijigeyingwenzimudetouyigezimudoushi“c”gucichengwei4c。

　　一、钻石等级衡量四要素

　　1. kela-----carat grade

　　zaiqitasanyaosujunxiangtongdeqingkuangxiadankekeliyueda，zhongliangyuezhongdezuanshiyueguizhong。suoyibingbushidajiapingshixiangxiangdeneiyangyuedayuehao，zheishijiyuyishangtiaojianxiade。xianzaihenduonvxingyiyongyouchaoguo1ctyishangdezuanshizuoweizijidemengxiang，buguoduiyuyibanderenlaishuoyouyimei0.35—0.45ctzuanjiejiukeyixiangyongle。

　　2. yanse----- color grade

　　yanse(seze)fenweicongd—zdedazhi5gedengji。qizhongd、e、fweizuiyoudengci(colorless)wuse，yidweizuiyou，e、fweici。houshig、h、i、jweiciyoudeng(near colorless)jiejinwuse。zaihoudengjidecongk—zjiushiyousedele，k、l、m(faint yellow)shaoweidaiyouhuangse，n—zweizuilie(very light yellow、light yellow)qingweidaiyouhuangse。goumaidehua，yidjipinweishouxuan，zhishaoyeyaoejide。

　　3. jingdu----- clarity grade

　　jingdufenweicongf—idedazhi5gedengji。f、ifweizuiyoudengji，jinhutoumingdejipin，feichangzhenguierqiehanjian。yibanzaishangdianchushoude，vvs1、vvs2weigaodengjipin。qihoushisi1、si2。zaihoushii1、i2、i3。goumaidehua，yivvs1、vvs2jipinweishouxuan，zhishaoyeyaovs1jide。

　　4. qiegong----- cut proportion finish

　　qiegongfenwei6gedengji，fenbieshiexcellent、very good、good、medium、fair、poor。goumaidehua，yiexcellent(wanmeijizhipin)、very good(jingzhipin)weishouxuan，zhishaoyeyaomaigood(jingpin)jide。

　　二、钻戒等级与价格的关系

　　1、dengjiyuegao，jiageyehuiyuegao。

　　2、xiaoyu0.2kelaguojiabiaozhunbufenji。0.2dao1kelajikeanluozuanfenji，yekeanxiangqianzuanshifenji，dayu1keladezuanshibixuanzhaoluozuanfenjibiaozhunjinxingzuanshi4cxiangxifenji。

　　3、chulezuanshizhongliangwai,zuanshiqiegongshiduizuanshijiageyingxiangzuidadeyinsu,xiangtongdengjibutongqiegongdengjidezuanjie,jiagekexiangcha20%-35%,erbutongjingduheyansedekexiangcha15%-25%.lingwaibutongyingguangdengjiduizuanshijiageyeyouyingxiang。

　　4、lejiezuanjiedengjiyujiagedeguanxishitiaoxuangaoxingjiabizuanjiehenzhongyaofangfa。