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GIA 任命 Johanna Levy(约翰娜·利维)
GIA 任命 Johanna Levy(约翰娜·利维)为环境、社会和治理项目副总裁

加利福尼亚州卡尔斯巴德 — 2022 年 7 月 14 日 — GIA(美国宝石研究院)欢迎 Johanna Levy(约翰娜·利维)担任研究院首任环境、社会和治理 (ESG) 项目副总裁。

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The new record size for CVD laboratory-grown diamond—16.41 ct, with G color and VVS2 clarity—has been achieved by Shanghai Zhengshi Technology Co. Ltd. This is an as-grown diamond; no post-growth treatment was applied for color improvement, either before or after faceting. Photo by Towfiq Ahmed.
 GIA检测打破世界纪录的实验室培育钻石

加利福尼亚州卡尔斯巴德 

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