实验记录
International Gemological Institute
The trade uses IGI for grading reports on natural and laboratory-grown diamonds, coloured stones and finished jewellery, and for its gemmology schools.
记录
总部Antwerp, Belgium
成立1975
身体类型Report issuer
关于原产国的意见发布
状态发布报告
涵盖内容
DiamondColoured stoneOrigin determinationTreatment detectionSynthetic detectionEducation
其发布的报告
名称以该实验室在其网站上所标注的名称为准。报告内容及措辞均由该实验室确定，而非由我们确定。
- Natural Diamond Report
- Colored Stone Report
- Jewelry Report
值得了解
IGI lists four global head offices, in Antwerp, New York, Mumbai and Shanghai, and does not designate one as a single headquarters. Country of origin appears on the Colored Stone Report only where analysis conclusively reveals it. IGI announced on 31 January 2026 that it had acquired American Gemological Laboratories.
摘自 igi.org，阅读请访问 2026年8月16日。
我们审核的是经销商，而非宝石。实验室报告仅描述某颗宝石在某一日期的状况；它并非价值的保证，我们也不对此负责。