钻石切工、对称及抛光等级的挑选

       zuanshiqiegongshizuanshi4czhongdezhongyaocanshuzhiyi，duiyurenmentiaoxuangoumaizuanshijuyouzhongyaoyiyi，zuanshiqiegongdengjidegaodikeyizhijieyingxiangdaozuanshijiazhi，erzuanshiqiegongyekeyixifenweisangebufen，fenbieweiqiegong、duicheng、paoguang，xiamianwoaizuanshiwangweinindailaizuanshiqiegonggebufendexiangjie，yijiduiyingdetiaoxuanjianyi。

       钻石切工

       zheilisuozhidezuanshiqiegongyekeyichengweizuanshiqiegebili，zhideshizuanshigegebuweixiangduiyuzuanshiyaobuzhijingdebizhi，yijizhuyaodeqiegejiaodu，rudetaikuanbilv、guangaobilv、guanbujiaobilv、tingshenbilv、yaohoubilv、tingbujiaobilv、dijianbilvdeng。qiegongbiliyingxiangguangxianzaizuanshizhongchuandidefangshi，qiegetaiqiantaikuan、huotaishentaizhaidezuanshihuizailiangcehuodibulouguang，shizuanshisangshishanshuodu。

       yichangjiandeyuanxingzuanshiweili，yikewanmeiyuanxingzuanshideqiegongbilijianyiquanshenbibaochizai57.5%-60%zhijian，taikuanbizai52%-57.5%zhijian，tingshenbizai41.5%-45%zhijian，yaobuzhongdenghoududejike，zheixieshujubiaoxianzaizuanshiqiegongdengjishangjiushiexcellent（ex）；dangran，zuanshidexingzhuangbuzhiyuanzuanyizhong，meizhongbutongxingzhuangdezuanshisuoshihedeqiegongbilibutong，suoyiyuanxingzuanshiqiegebilibingbushiyongyusuoyouzuanshi，zaigoumaizuanshizhiqiankeyizhenduixiangyaodezuanshixingzhuang，duibutongdeqiegongfangshijinxingyidinglejie，cushixiaofeizhemaidaoqiegongjiaojiadezuanshi。

       钻石对称度

       zuanshikemiandeduiqi（huochengduichengdu）duizuanshizuizhongchengxiandexiaoguojuyouzhongdayingxiang。meigekemianjiuhaobiyimianjingzi，danggekemianyunchengdiduiqishi，suoyoubeifanshedeguangxiandouhuizhijiejujiaoyuwomendeyanjingshang。zaixiamiandechatuzhong，zuobiandezuanshiduichengduqianjia，kemianyimeiyouduiqi。yinci，guangxianzaizuanshizhongyibudangfangshichuandi，shanshuodujinshi。

左边钻石刻面偏差

       ;ruguoyikezuanshideqiegongyouliang，neimeduichengdeqiegehuilingshanguangjihuocaigengjiaqianglie。guowaizhengshuguanyuduichengxingdepingjiayejiaoweixiangxi，conggaodaodiyiciyou ideal （id）、 excellent（ex）、very good （vg）、fair （f）、poor （p），zuijiaduichengdudangranshiexcellent（ex）。

       钻石抛光

       zuanshipaoguangtongsudejieshiweizuanshibiaomiandeguanghuadu，bijiaochadezuanshipaoguangxiaoguozhijieyingxiangzuanshideguangxuexiaoying，birupaoguangduyanzhongshibujinhuijidadijianruozuanshidemingliangdu，erqiehaihuiyingxiangzuanshidetoumingdu，zaochengzuanshibiaoxianandanmeise，fansheguangxianandanhuobuqing。zaiguojishang，zuanshipaoguangduyebeifenweibutongdejibie，fenbieweiexcellent（ex）、very good （vg）、fair （f）、poor （p），tongduicheng、bilixiangtongdeshi，expaoguangjibieyishuzuijia。

       yishangjiushiwoaizuanshiwangjintianweidajiafenxiangdezuanshiqiegongxiangguanzhishi，zaigoumaizuanshishi，qiegongfangmianyibanjianyiexjibieweizhu，ruguoyusuanshaodiyixiekeyiyexuanzevgqiegong，zhideyitideshi，duiyuyixieyixingzuanshilaishuo，zuanshiqiegongdengjideyaoqiubingbushihengao，zhiyaokanqilaiduichengjike。