买30分钻戒如何来定位其4C等级?

　　jinguanrujin，xiangbi50fenzuanjieyaobi30fenzuanjiegengshouxiaofeizhedechongai，dan30fenzuanjierengranshimuqianbijiaoshougongxinjiecenghuanyingdezuanshidaxiao。womendouzhidao，zuanshi4cshijuedingzuanshidepinzhi，yinciruhelaixuangou30fenzuanjiede4cni?

　　youyu30fendezuanshibuda，xuangou30fenzuanjiezhuyaoyeshigongxinjieceng，suoyixingjiabishishouyaokaolvde。zaizuanshi4cpaixudangzhong，bijiaoshourenkedeshijidaxiao--qiegong--yanse--jingdu，zaidaxiaoqueyedeqingkuangxia，shouyaokaolvdeshiqiegong，qicishiseze，zuihoucaishijingdu。

　　30fenzuanjiedeqiegong，womenrengranshijianyixuangou3exqiegong，yinwei30fendezuanshiyijingnenggouzhanxianyidingdehuocai，erqiegongshiyingxiangzuanshihuocaidezuizhijiedeyinsu，suoyizaixuangoudeshihoujinliangxuangouhaodeqiegong，30fenzuanshibenshenbingbuda，jiuxuyaozaihuocaishanglaimibu，laichentuotadeguangcai。

　　qicishiseze，zaigoumai0.3kelayixiadezuanshishi，keyixuanzejibielvediderubudiyuksedejike。rouyanshihennanchajuedao0.3kelayixiazuanshideyansechayide。eri-jseshiyongyouzuigaoxingjiabidezuanshiyansejibie。keyigenjuzuanshideqitayinsutiaoxuani-jsezuoyoudesezejibie。

　　zuihoukaolvdeshijingdu，zuanshijingduyongrouyanshihennanfenbiande，duiyu30zuoyoudaxiaodezuanshigengnanfenbian，gengbubiyaoguoyukeke，xuanzesijixingjiabishizuigaode，yongrouyanshiwufafenbiansijihevsjide。30fenzuanjie，qianzaibojintuoshangdezuanshi，yansedadaoksejiuke，yongyougaojibiedeqiegonghegaoxingjiabideseze，tongyangnenggouchuhuo。

　　mai30fenzuanjieruhelaidingweiqi4cdengji?xuangougaoxingjiabide30fenzuanjie，bujinjinshixuangougaoxingjiabidezuanshi4c，haixuyaozhuyikuanshi，30fenzuanjiebenshenbuda，keyitongguoyixiekuanshilairangzuanshixianda，rusizhuaxiangqiandengdeng，jiukeyirangzuanshixianda，erqieyoulaogu。lingwai，30fenzuanjieyekeyitongguokuanshilaizengqiangmeili。