最标准的钻石切割比例，钻石严选标准比例

wanmeiqiegongdengjidezuanshi，meiyijiaodudeqiegebilidouzaiyidingdebiaozhunfanweinei，erzhuiqiuwanmeidexiaofeizhezehuiyougenggaoyaoqiu，tamenhuiyaoqiushangjiaweiqitiaoxuanbiaozhunfanweineigengweichusedezuanshi，jizuanshiyanxuan。neimezuibiaozhundezuanshiqiegebilishiduoshao？xiamianfenxiangzuanshiyanxuanbiaozhunbilibiao。

guobiaogb/t16554-2018《zuanshifenji》duizuanshideqiegongfenjidingyi，tongguoceliangheguanchacongbilvhexiushidulianggefangmianduizuanshijiagonggongyidewanmeixingjinxingdengjihuafen。

bilvjizuanshiqiegongshuju，baokuoguige、taikuanbi、guangaobi、yaohoubi、tingshenbi、quanshenbi、xingkemianzhangdubi、xiayaokemianzhangdubi、guanjiao、tingjiao。tongguozuanshiqiegongbiliyiduizheixiecanshudeceliang，keyidedaozuanshiqiegongbilishuju，congergenjubiaozhunjinxingduizuanshideqiegongshujubilvhuafendengji：

giazuanshiqiegongfenjishujufanweibiaozhun

shangtuguidingleshenmeqiegongbilvshuyushenmededengjifanwei，yimuleran。

womenzaixuangouzuanshishi， jingchanghuiyaoqiu3exqiegong，dan3exqiegongdezuanshihuocaibuyidingwanmei。

liruexqiegongjibiedetaikuanbifanweishizai52%-62%zhijian，yejiushishuozuanshidetaikuanbiwei52%，yekeyibeihuafenzhilixiangqiegong（ex），danzheizhongqiegongdengjiwangwangshi“cabianhuo”，suiranjibiegao，danyebuhuitebieyouxiu。

erex（lixiangqiegong）debilvshujufanweikeyijinyibuyanxuan、xixuan，shidangdetiaoxuanexfanweiliqiegongbilishujugenghaodezuanshi，keyishizuanshihuocaigenliangdubiaoxiandegengweichuse。zheijiushizuanshiyanxuan。

genjushangtuzhong“giazuanshiqiegongfenjishujufanweibiaozhun”dejieshao，zuanshiqiegongbiliyouliehuafencongduogefangmianlaikan，birutaikuanbi、quanshenbi、yaohoubi、guanjiao、tingshendengdeng，xiamianfenxiangbutongjiaodudezuanshiyanxuanfanwei：

taikuanbi：57%~60%

quanshenbi：59%-62%

guanjiao：zuibiaozhun34.5°，yunxufudong1°，kezai33.5°~35.5°

tingjiao：40.5°-41°

guangaobi：15%-15.5%

tingshenbi：42.5%-43.5%

yaohou：3.5~4.0

xiayaomianzhangdubi：75%

xingkemianzhangdubi：50%-55%

㡳尖：none

genjuyishangshujutiaoxuandezuanshiyouhenyouxiudehuocaiheshanguangbiaoxian，danfuhezheixiebiaozhundezuanshixiangduihaishibijiaoshaojiande，hennanxuandao。yibanxiaofeizhezaitiaoxuanzuanshishi，qiegongdadaoexjibiejike。