五个关于裸钻切工的指标

 　　guanyuzuanshi，weishenmeyaoshuoshiluozuanni?shenmeshiluozuanni?jiandanlaishuoluozuanjiushikaicaihoudezuanshiyuanshi，jingguorengongqiegedamochengxinghou，haimeiyouxiangqiandaoshipinshangdedankezuanshi。jiushishenmexiushidoumeiyou，zhiyouzuanshibenshen，guming“luo”zuan。

　　luozuandedengjipingdingzhuyaoshi4cbiaozhun，jizhongliang——kelashu(carat)、jingdu(clarity)、yanse(color)heqiegong(cut)，zheisixiangdepingjundengjijuedingzuanshidedengjihejiazhi，qizhongweiyinenggourenweikongzhizuanshipinzhidejiushiqiegongdengji。yigehaodeqiegongzhijiehuiyingxiangzuanshidehuocai，qitadeyinsuruzhongliang、jingdu、yanse，doushitianranzuanshizaiziranhuanjingzhongyushengjulaidetedian，buhuiyinweihoutianrenweideqiegedamoergaibian。

　　yibanqiegong(cut)chulezhengshushangpingdingdeqiegongdengjishijihao(ex)，henhao(vg)，hao(g)jigefangmian，haiyouyixiawugeguanyuqiegongdezhibiao：

　　quanshenbi(depth)：zuanshigaoduhexiangduiyaopingjunzhijingdebaifenbi59.3~61.0%weizuijiabilv，52.5~67%neiweihao。

　　taikuanbi(table)：taimiankuanduxiangduiyupingjunzhijingdebaifenbi，giadebiaozhunshi52.5%-58.4%weiexcellent。

　　yaoxian(girdle)：mediumweihao、thinheslightly thickweilianghao、very thinhethickweiyiban、extremely thin、very thick、extremely thickweibujia。

　　dijianbi(culet)：wu(pointed)、jiweixiao(none)、henxiao(very small)、shizhong(medium)、shaoda(slightly lager)、da(lager)、henda(very lager)、jida(extremely lager)，ruguodijianmiantaixiaorongyimosun，taidazehuiyingxianghuocai。

　　xiushidu(fish)：fenweipaoguang(polish)heduichengxing(symmetry)，zhuoyuede(excellent)、feichanghao(very good)、hao(good)、dazhilianghao(fair to good)、shangke(fair)、buliang(poor)。

　　ruguozaiyusuanyidingdeqiantixia，4ckeyigenjuzijidexihaolaixuanze。renmenzuichangxuanzedefanwei：qiegongex、vg，jingduvsjihuovvsji，yansezaig~isezhijian。lianglierxing，huobisanjia，daozhengguishangjiagoumai，baozhengshouhoufuwu，goumaiyouzhengshudeluozuanbaozhengpinzhi，xuangoushihezijidecaishizuizhongmude。