判断钻戒质量好坏的三个招数

　　ruhezhengquedequpanduanzuanjiedepinzhini?kanzuanshihaohuai，zuikekaodezhengjujiushikanzuanshifenjizhengshu，kanjietuohaohuai，zhuyaoshikantadecaizhihedamogongyi，jiehezheiliangdianzaicongshijuexiaoguoyenengchubupanduanzuanjiedehaohuai。danjinyouzheiyangdefangfahaibugoujutichongfen，xiamianxiaobianjiujiaodajiajiandanpanduanzuanjiezhilianghaohuaidesangezhaoshu。

　　第一点：寻找中心点

　　ruguoshiduichengxingdejiezhi，tadetuanjizaoxingbunengpianlizhongxin。huozheliangmianduicheng，huozhesimianduicheng，juebunengchuxianduichengdeshuangfanggaodibupinghuodaxiaobuyizhi。qianbaojiedebaoshiyibanjuzhonganfang，baoshiyujietuodechikoubixupeihejinmi，jianxiyuexiaoyuehao;yekeyiyongshouzhiqingqingzhuandongbaoshiwailubuwei，kanbaoshishifouyousongdongjixiang。

　　第二点：检查重心

　　panduanjiehunzuanjiezhiliangdehaohuaiyibanlaishuo，jiemianbijiejiaoshaozhong，danruguoguozhongjiubuhaole。zaizheizhongqingkuangxia，jiehunzuanjiehuixiangshouzhidezhiduzhuiluo。jianchadefangfashibajiezhixiandaizaixiaozhishang，baochisongdongdezhuangtai，qingqingdihuangdong，yijiezhimianbuzhuanxiangpingfangdeshouzhidexiaduanweihao。zheiyeshipanduanjiehunzuanjiezhilianghaohuaidefangfazhiyi。

　　第三点：查看证书

　　youxieshihouhuiganjuezuanshidezhengshubutaizhun，qishizheizhongguandianshicuowude，yinweigengduodeshihou，jiehunzuanjiezhiliangdehaohuaizaizhengshushangmiantixiandehaishibijiaodezhiguande，xianzaidezuanshidezhengshuyouguojiandeyeyoumeiguobaoshixueyuande，bulunshinazhongzuanshidezhengshu，doushikeyizuoweinidejiehunzuanjiezhiliangbianbiedeyigepingju，xiangxinyeshihuiyousuobangzhude。jieheyishangsandadian，duiyupanduanzuanshihunjiepinzhihaohuaishifeichangrongyide。