钻石回收时证书对其价格的影响

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　　钻石回收时，具备哪种证书的钻石价格会卖的更高?在珠宝鉴定机构中，最知名的还是美国珠宝学院(GIA)，美国珠宝学院是个非赢利性机构，它主要从事珠宝教育、科研和鉴定。另外，其他一些有名的实验有“欧洲珠宝实验室”(EGL)，比利时钻石高阶层议会(HRD)，美国宝石学学会(AGS)，世界宝石学院(IGI)。这些机构出具的证书在国际上都是被认可的，也具有很高的权威性。而国内钻石的证书较权威的证书有NGTC和SNGTC，这两种在国内也是被认可的!但是，值得注意的是，并非所有的钻石都可以出具鉴定证书的，国际国内对能对钻石大小出具证书的标准也并不相同，可阅读：为何30分以下的钻石没有GIA鉴定证书?

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