IGI vs GIA (钻石证书)

By Michael Fried
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底线的推荐

尽量避免购买 IGI 证书的钻石。只够买信誉度高的供应商的钻石,而且是来自 GIA或是 AGS这种值得信赖的鉴定中心的钻石(比如说 James Allen或是 Brian Gavin钻石)。

igilogoIGI 钻石证书

IGI 开始于钻石商业的蓝色主力军。

他们过去是,现在也还是美国和加拿大主要珠宝产业链上最有欢迎的宝石鉴定中心(Kay,Zales等等)。

他们像工厂一样。他们工作很快,也很便宜。

IGI 于其它鉴定中心的竞争

最近,他们也把自己放在是其它鉴定中心的竞争者的位置上,而不仅仅是主要产业链上的一个鉴定工厂。

IGI 在海外

虽然他们在美国没有那么的成功,他们已经在欧洲和中东赢得了不错的市场份额。我经常到迪拜去卖钻石,在市场上最主要的两个证书就是HRD和IGI。

IGI 更宽松的等级鉴定

对比于GIA的IGI鉴定的底线是他们总是在颜色上跟宽松,有时候在净度上也是。

我的意思在这个“SI3”范围内,他们通常会把它升级为“SI2”。在这里的“SI2”的钻石几乎都不会通过GIA的“SI2”的鉴定。

评论者的第一手资料

以我专业的职业经历来说,我非常明白这点,在美国和英国的主要珠宝商店里,我已经挑选了成千上万的IGI证书的SI2钻石。

这些石头(通常是以很低的价格提供很好的价值,也是最便宜的裸眼干净的石头)都是最低的SI2净度。

对于这些石头,我们总是要试图找到在“SI3”范围内的石头 — 也就是说这些钻石在GIA的鉴定下不会是“SI2”,但是作为“I1”来出售有太可惜了。

About the author
Mike learned the diamond business from the ground-up at Leo Schachter Diamonds - one of the world's top diamond manufacturers. He has been recognized as a diamond industry expert by Time, PeopleMoney, The Daily Mirror, NerdWallet, The Times Herald, Yahoo Finance Australia, The Art of Charm, The Washington Diplomat, The Next Web, and more. See more
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