钻石切工等级“EX”“VG”“G”都代表什么意思?

 ;　　duizuanshi4cyoudianlejiedederendouzhidao，zuanshiqiegongkeyizhuyaofenweisangedengji，ji“ex”“vg”“g”，neime，zuanshiqiegongdengji“ex”“vg”“g”doudaibiaoshenmeyisini?tamenshishenmecidesuoxieni?daibiaoshenmeyangdeqiegongjishuni?xiamianwoaizuanshiwangdexiaobianweidajiaxiangjie。

　　xianzaigoumaizuanshiderenyuelaiyueduo，eryouguanzuanshiqiegong、huocaidengzhuanyeshuyudetaolunyeduoyouerwen，zuanshideqiegongkeyifenwei“ex”“vg”“g”sangezhuyaodengji。

　　“ex”jiushizhi“excellent”，jisuoshuodewanmeiqiegong。daibiaolezhiyou3%deyiliugaozhiliangzuanshicainengdadaodebiaozhun。zheizhongqiegongshizuanshijihufanshelesuoyoujinruzuanshideguangxian，shiyizhongjiechudeqiegong。

　　zuanshiqiegongde“vg”zeshi“very good”，weifeichanghaoqiegong，daibiaoledayue15%dezuanshiqiegong。zheizhongqiegongkeyishizuanshifanshechuhebiaozhundengjiqiegongdeguangmang，erqiejiagepiandi。

　　suoshuode“g”deqiegongjiushi“good”，weihaoqiegong，zeshizuanshifansheledabufenjinruzuanshineibudeguang。zheizhongjibiedeyaobivgjibianyideduo。