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专业的 项目与课程

与专家和知名机构学习的独特体验

OGP is merely acting as a collector's group in recommending that you research for a professional gem identification course; there are no fees associated with this recommendation. Please visit the GIA website to register if you are interested in having your jewellery appraised by the highly regarded and well-known GIA, which we highly recommend.

Graduate Gemologist Program (GIA)

One of the most prestigious credentials in the industry, the GIA Graduate Gemologist® program gives you the comprehensive knowledge of diamonds and colored stones you need to succeed anywhere in the jewelry business.

价格

期间

$26,751.10

Jan. 1, 2023 through Dec. 31, 2023

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