合成钻石和天然钻石怎么鉴定？

放大镜观察钻石内部瑕疵

tongguogaobeishuxianweijingfangdajiancha，tianranzuanshineiyougezhongtianranbaoti，erhthphechengdezuanshirongyichuseheisedejinshubaoti，zheigeshibijiaodianxingdetezheng。danzheigepanduanfangfayebuwanquanzhengque，zhikezuoweifuzhujianbieshouduan。

hphthechengzuanshizhongdejinshubaoti

测试钻石荧光颜色

tianranzuanshidaduoshilanbaiseyingguang，erhechengzuanshizeshilanlvse、chenghongsedeyingguang、linguang。yitaimingweidiamond viewdeyiqi，keyiguanchazuanshideyingguang、linguang，peihecapturexitong，haikeyiguanchadaohechengzuanshizaishengzhangguochengzhongdeshengzhangwen。

tongguoyingguangyansejiandingyeshijiweipianmiandefangshi，tianranzuanshideyingguangyanse，daduoshushilanbaise，danyoudeyechenghuang、cheng、lvdengyanse。

看鉴定证书

1、国检证书

gb/t16552《zhubaoyushimingcheng》zhongguiding：

tianranbaoshidedingmingzhijieshiyongtianranbaoshijibenmingchenghuoqikuangwumingcheng，bubijia“tianran”erzi，yincitianrandezuanshibuhuizaiqianzhuijia“tianran”liangzi，zaijiandingzhengshuzhongshizhijieyi“zuanshi”mingming；

hechengbaoshidemingchengyingzaiduiyingdetianranzhubaoyushijibenmingchengqianjia“hecheng”erzi，yinciruguoshirengonghechengdezuanshi，bixuqianzhuijiahechengliangzi，ji“hechengzuanshi”。

2、GIA证书

tianranzuanshihehechengzuanshijunkechujugiazhengshu，danweilerangputongrenqufenchuliangzhe，giazuanshizhengshuhegiashiyanshihechengzuanshizhengshuyouzhemingxianqubie：

giatianranzuanshizhengshujiaoweichangjian；giahechengzuanshizhengshubijiaorongyifenbianchulai，giahuizaizhengshushangzhijieyiwenzixingshibiaoming“laboratorygrown”（shiyanshipeiyu）ziyang。

合成钻石证书

qishi，zuanshizuozuanshifenjideshihou，shouxianhuijiancezheigezuanshishibushitianranzuanshi，ranhouzaijinxingfenji。xianzaiguoneiduoshuquanweidejiancejigou，shibuduihechengzuanshijinxingfenji，zhishizuojiandingzhengshu。

ruguodanxinyudaobuliangshangjia，maidaoyijialuanzhendezuanshi，keyimaihuihoudaoquanweijigoufujian。qishihenduozhengguizuanshishangjia，shibuhuichushouhechengzuanshide，gengbieshuoyihechengzuanshimaochongtianranzuanshi，yincigoumaizuanshishi，jianyixuanzexinyuhaodezhengguishangjia。