钻石切工3vg和2ex哪个好

zuanshideqiegongyou“qiegongbili、paoguang、duicheng”3gebiaozhunlaihengliang，zuanshiqiegong3vgdaibiao3gebiaozhunjunweivery good (vg，feichanghao)jibie。2exbiaoshi3gebiaozhunzhongyouliangxiangweiexcellent(ex，lixiang)jibie。3vghe2exnagehao，xuyaokanjutideqiegongdengji。

zuanshideqiegongyou3gebiaozhunlaihengliang：

1）duichengxing：zuanshigebufenweiraozhongxindiandekemianshuipingduichengchengdu。

2）qiemo：zuanshisuoqiegedejiaoduhebili。

3）paoguangdu：zuanshibiaomiandepingzhengdu、guanghuadu。

qizhongqiemo、paoguang、duichengdoufenwei5gedengji：excellent（ex lixiang）,very good（vghenhao）,good（gd hao）,fair（f yiban）,poor（pcha）。

3vgshizhigaizuanshideduichengxing、qiemo、paoguangdujibiedouweivgjibie；

2exshizhigaizuanshideduichengxing、qiemo、paoguangduzhizhongyoulianggejibieshiex，lingyixiangweiqitajibie。

zuanshiqiegong3vghe2exnagehaoxuyaokanzhengtijibie。2exqiegongzuanshidejutidengjiyouduozhongkeneng，genjubutongzuhefangan，jiazhigaodiqubieruxia：

① vg/vg/vg ＜ ex/ex/vg

② vg/vg/vg ＞ gd/ex/ex