SI净度的钻石肉眼能看到瑕疵吗？si级钻石≠肉眼无暇（Eye Clean）

SI级钻石定义

1、SI级钻石=肉眼无暇

《xitongbaoshixue》duisijizuanshidedingyiwei：yuvsqubiezaiyu，sijizuanshiyong10beifangdajingjikehenrongyifaxiannei、waibutezheng，danshiqudiaofangdazhuangzhiyongrouyanwufakandaonei、waibutezheng。

yinci，jingdusijizuanshichangbeirenwei“rouyanwuxia（eye clean）”huo“rouyankanbudaoxiaci”dezuanshi，yinqixingjiabichaogao，beixuduoshangjiajizhuanyerenshituijian。

《xitongbaoshixue》zhongsijizuanshidedingyi

2、SI级钻石≠肉眼无暇

xindeguojiazuanshifenjibiaozhungb/t16554-2017zhong，guanyu"sijizuanshi"dedingyiyoucengjingde“rouyanwufaguancha（xitongbaoshixuededingyi）”biangengwei“rouyannanyiguancha”。

xinjiubanguobiaosijizuanshidingyi

zaigiafenjiguizezhong，guanyusijizuanshideshuofayeshi“burongyifaxian（not easily noticeable）”。

SI级别钻石肉眼能看到瑕疵吗

yaozaizhongduosijizuanshizhongtiaoxuanchuzhenzhengfuhe“rouyanwuxia（eye clean）”biaozhundehaishibijiaokunnande。

sijizuanshishifounengdadao“rouyanwuxia（eye clean）”zhuyaoyouyixiayingxiangyinsu：

1、zuanshidedaxiao。tongchangdakelashudezuanshigengrongyirouyanfaxianneibuxiaci；

2、xiacideyanse、zhonglei。tongchangqingkuangxiashensebaoti、dadeyuliegengrongyibeifaxian；

3、xiacideweizhi。tongchangqingkuangtaimianzhengxiafang，jiaoqianweizhidexiacigengrongyibeifaxian。

zongeryanzhi，ruguoxiangyao“rouyanwuxia（eye clean）”dezuanshi，duiyushilijihao、dongchalijiqiangdereneryan，jianyibaoshouxuanzevs2jidezuanshi，shenxuansiji。bingfeishishuosijizuanshibukexuan，zaizhuiqiuxingjiabideqiantixia，keyilianxishangjiatiaoxuanrouyanwuxiacidesijingdujibiedezuanshi。