异形钻石为什么没有切工分级？

圆形钻石切工

tongchangqingkuangxiazuanshiduoqiegeweiyuanmingliangxingqiegong，biaozhunyuanxingzuanshianzhaosangebiaozhunlaihuafenzuanshiqiegongdengji：bilv（proportion）、duichengxing（symmetry）hepaoguang（polish）。

genjuzheisanxiangdehaohuai，youfenbiekeyifenweiwugejibie：ex（excellent，jihao）、vg（very good，henhao）、g（good，hao）、f（fair，yiban）、p（poor，cha）。dangbilv、duichengxinghepaoguangsangeweidudoudadaoex，jiqiegongfenjiwei3ex。

3exqiegongdezuanshinenggouzuidachengdushangzhanshichuzuanshidehuocaiheliangdu，yinci3exdeyuanzuanqiegongshixiaofeizhegoumaizuanshishideshouxuan。

异形钻切工

yixingzuanshishizhichulebiaozhunyuanmingliangxingqiegongyiwaideqitazhuoxingdezuanshi。yubiaozhunyuanzuandeqiegongbuyiyang，yixingqiegongbiaozhunzhiyoulianggeweidu，jiduichengxinghepaoguang。erdangzheiliangxiangdoudadaoexdebiaozhunshi，cishiqiegongfenjiwei2ex。

为什么异形钻没有切工分级？

zhuyaoshiyixingzuandexingzhuangfenweihenduozhong，bijiaochangjianqiehuanyingdujiaogaodeyoulixing、xinxing、gongzhufang、dianxing、tuoyuanxingdeng，ruguoduibilvjinxingfenjifeichangkunnanqiefansuo。

qici，yixingzuanbuxiangbiaozhunyuanzuanxingneibangaoduduicheng，qieqiegeshujubiaozhunjiaotongyi，nenggoudechukeyipanduanyouliedejixieshuju。biruyikelixingzuanshi，yourenxihuanpianpangde，yourenxihuanpianshoude，biaozhunhennantongyi。

zuihou，yixingzuandeqiegeyibaozhongweizhu，zaibaochizhengtimeiguandeqingkuangxia，huijinliangbaochigengduozhongliang。zheizhongtedianzaishichangzhonghenmingxiankeyiguanchadao，biruhenduolingrenzantandedakelazuanshi，wangwangdoushiyixingqiege。

异形钻石挑选

jinguanyixingzuanshidebilvmeiyoujichujutidefenji，danshiyibanzhengshushangdouhaishihuijichuzuanshidebilv，duiyuyixingzuanshieryanzhijichutaikuanbihequanshenbiliangxiang。

congqiegongdejiaodueryan，yixingzuandepaoguangjibiezuihaoshiexdengji，yinweipaoguanghuizengjiazuanshideliangdu。duichengxingjibiezuihaoyeshiexdengji，shuomingzheikeyixingzuanqiemodebijiaobiaozhun。

shoubutongzhangkuanbilideyingxiang，youdeyixingzuankanqilaijiubijiaopianaipang，youdekanqilaizepianshouzhang。erduizuanshizhangkuanbideyaoqiu，kecankaoxiabiaozhongbutongzhuoxingdezuanshizhangkuanbili（zhangkuanbishizhizuanshiyaoweizuidazhangduhezuidakuanduzhijiandebi）biaozhun，ranhougenjugerenxihaojinxingxuanze。