怎么看钻戒切工对称性

zuanjieqiegongpingjicong“qiegongbili、duicheng、paoguang”sangefangmiankaolv，qizhongduichengxing（symmetry）haodezuanjie，xingzhuangguize，taimianweiyuzhongxin，qiegemianxianghuduicheng...

genjuzuanshi4cfenjibiaozhun，zuanjieduichengxing（symmetry）fenweiwugedengji，conggaodaodifenbieshiexcellent（lixiang/wanmei）、very good（feichanghao）、good（hao）、faint（yiban）、poor（cha）。

tongguogiadazheng，keyizhijieguanchadaozuanjiededuichengjibie。

钻戒对称性分级

lixiang(excellent) ：zuanshizai10beifangdajingxia，meiyoubuxiaozhi，cuoweihuobuguizexingzhuangdeqiegemian。lixiangduichengxingdengjidezuanshi“shanliangdu”mingxianyouyulianghaoduichengxingpingjidezuanshi。

feichanghao(very good)：zuanshizai10beifangdajingxiaguancha，keyikandaoyidaoliangchubuduichenghuobuguizexingzhuangdeqiegemian。juyouciduichengxingdengjidezuanshi“shanliangdu”mingxianyouyujuyoulianghaoduichengxingpingjidezuanshi。

lianghao( good ) ：zuanshizai10beifangdajingxiaguancha，keyikandaoduochubuduichenghuobuguizexingzhuangdeqiegemian。

yiban( fair ) ： keyikandaozuanshiyouxuduobuduichenghuobuguizexingzhuangdeqiegemian。zheigedengjidezuanshiguangzeduhuidiyupingjunshuiping，kanqilaihaowushengqi。

cha( poor )  ： dabufendezuanshiqiegemiandoushibuduichenghuobuguizede，zheigedengjidezuanshiguangzedujidi，zuanshikanqilaiquefashengmingli。

怎么看钻戒对称性好坏

yibanrenjinyongrouyanguancha，tongchangbukenengfenbianchuduichengxing“feichanghao”yu“wanmei、youxiu”dequbie。

duichengxingbuhaodezuanjieyouxiamianyixietedian（ruxiatu）：

钻戒对称性级别挑选

yongyouwanmeiduichengxingdezuanshi，yaobiduichengxingdengjidiyijidezuanshijiagegaoyixie。lingwai，zheiliangkezuanshideshanyaochengduyeyoumingxianchayi。

yibanjianyigoumaiduichengxingdadaoyouxiu (excellent) dezuanshi。ruguoyusuanyouxian，yejinliangxuanzeduichengxingdengjidadaofeichanghao(very good)dezuanshi。