买钻戒怎么知道切工好不好

zuanjieqiegonghaobuhaozhuyaokantadeqiegongdengji，genjugiazuanjieqiegongfenjibiaozhun，zuigaoqiegongjibieweiexcellent（lixiangqiegong），ketongguozuanshijiandingzhengshuchakan。chuleqiegongjibiewai，dajiayekeyizixiguanchazuanshi，lejietadeqiegonghaohuai。

guanchazuanjieqiegonghaobuhao，keyitongguoyixiajigefangmian：

①zaifangdajingxiaguanchazuanshikemianshifouyouwanqubianxingdexianxiang，ruguoyoudehuaneizuanshideqiegongkendingshicunzaiwentide；

②kanzuanshishifoujuyoupaoguanghen。tongchangyouzhiqiegongdezuanshishimeiyoupaoguanghende，danruguozuanshiqiegongbujingxi，jiukeyikandaozuanshibiaomianyouyixiemomohuhudepaoguanghen；

③kanzuanshilengjiao。biaozhunyuanxingzuanshidelengxianshi3tiaohuo3tiaoyishangjiaohuiyuyidian，jinerxingcheng1gejianruidezuanshilengjiao，qiegonghaodezuanshilengjiaoshifeichangyangejingmide。

lejiezuanjieqiegonghaobuhao，bijiaoquanwei、jiandandefangfajiushizhijiechakanqiqiegongpingji。

giajiangzuanshiqiegongfenweiwugedengji，conggaodaodiyicishi：ex（excellent，lixiang/wanmeiqiegong）、vg（very good，feichanghaoqiegong）、g（good，haoqiegong）、f（faint，yibanqiegong）、p（poor，chaqiegong）。

tongguoguojigiazhengshu、hrdzhengshu，guojiangiczhengshu、ngtczhengshudengdengjunkechakandaoduiyingzuanshidefenjixinxi，qizhongqiegongjibiedadaoexcellentjiudaibiaozuanshishiwanmeiqiegong。