已镶嵌的钻石如何进行色级评定?

　　zuanshideyanseshiyingxiangzuanshimeiguandeyigezhijieyinsu，luozuandeyansefenjirongyishibie，goumaideshihouzhixurenzhungiazhengshujiuxingle，danshihenduoxiaofeizhehuifaxian，zaiduizuanjiejinxingdengjifujianshi，jiancechulaizuanshidejibiequebiluozuandejibieyaodi，weishenmehuichuxianzheizhongqingkuangni?yixiangqiandezuanshiruhejinxingsejipingding?chuxiandejibiechashizhengchangxianxiangma?

　　yixiangqiandezuanshiruhejinxingsejipingding?xiangqianhaodezuanshijiezhiyaojinxingyansefenjimeibanfaxiangluozuanyiyangjinxingjingquedeyansefenji，yincizaiyanseshangkenenghuiyousuochayi，jiuqiyuanyinruxia：

　　1、shouxianxiangqianhaodezuanshideyaohuoyaobuyixiadetingbujibenshangdoubeizheyan，jinjinshiliuchulebuyibisedezuanshiguanbu，zaijianbieshangyouyidingdenandu。

　　2、xiangqianhaoledezuanshiyuexiao，yansedefenjiyuenan，yinweiguanbubiaomiandeguangcaiduiyansedeganraomingxian，zaijiashangzhouweiqiangliedejinshutuofanguang，jiangdilerenyanduiyansedefenbianlv，huishixiangcha2～3gesejidezuanshikanqilaixiangchawuji。

　　3、lingwai，youyuxiangqianhaodezuanshijinshujietuohuiyingxiangzuanshidesejizhunquedepanduan，xiangzuanjiedejinshutuotangruoshihuangjindehua，zehuirangzuanshidaishanghuangsedesediao，congerhuijiangdigaosejidezuanshideseji，erdisejidaihuang(he) sediaodezuanshiruoyonghuangjinxiangqian，zehennanbianbiezuanshizhenshideyanse，youshisejifanerkanshangquhuigenggao。

　　4、chucizhiwai，haiyouyigezhongyaoyinsuzaiyuxiangqianhaodezuanshibuyibise，yincizaijiezhidesejidengjishanghuishiyigebijiaokuandefanwei。

　　chengpinzuanjiedeyansefenjishizenmejinxingde?chengpinzuanjiechuxianyansediaojideqingkuangdajiaxuyaozonghecankaoyishangjidajiajieshaodeyinsu， yaoxiangduixiangqianhaodezuanjiejinxingyansefenjinixuyaozonghekaolvyishangzheixieyinsu，yigejingyanfengfu、jishushuliandefenjijishurenyuanhaishikeyicaiyongbisefaduixiangqianzuanshijinxingjiaokexuedefenji。