成品钻戒复检时色级为何会缩水?

　　zuanjieshiaiqingyonghengdexiangzheng，xinrenjiehunshiwangwangdouhuiqugoumaiyiduijiehunzuanjielaizuoweishuangfangaiqingxinwu。zhongsuozhouzhi，zuanshidejiazhishiyouqi4cbiaozhunjuedingde，jizuanshidezhongliang、qiegong、jingduheyanse。zuanshiyansezuizhijiedejuedingzhezuanshidemeiguanchengdu。danshi，wuluntongguoluozuandingzhizuanjiehaishigoumaichengpinzuanjie，zaizuozuanshifujianshi，henduorendouhuifaxianzuanshideyansesejisuoshuile，zheijiujingshishenmeyuanyinni?

　　chengpinzuanjiefujianshisejiweihehuisuoshui?zheishiyinweixiangqianhaodezuanjieyaojinxingfujianshimeibanfaxiangzailuozuanjiandingyiyangjinxingjingquedeyansefenji，suoyifujianshiyansekenenghuiyuluozuanyansejibiehuiyousuochayi，qiyuanyinzhuyaoyouyixiajigefangmian：

　　1、shouxianxiangqianhaodezuanshideyaohuoyaobuyixiadetingbujibenshangdoubeizheyan，jinjinshiliuchulebuyibisedezuanshiguanbu，zheizaijianbieshangyouyidingdenandu。

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

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

　　4、chucizhiwai，haiyouyigezhongyaoyinsuzaiyuxiangqianhaodezuanshibuyibise，yincizaijiezhidesejidengjishanghuishiyigebijiaokuandefanwei。

　　chengpinzuanjieweihehuichuxianyansediaoji?yishangjiushichengpinzuanjiefujianshichuxianyansejibiechadezhuyaoyuanyin，dajiazaizuozuanshifujianshixuduojiazhuyi。