GIA

网站别称：GIA 网站状态：正常访问
国家总部：其他更新日期：2024-04-01
所属公司：-
官网地址：gia.edu 进入首页
标题广告：Gemological Institute Of America | All About Gemstones - GIA
网站标签：GIA, Gemological Institute of America, gemstones, gems

GIA网站描述：Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.

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