Articles & GSB Blog

Expand your knowledge and learn more about geology, gemology, and mineralogy with our free educational articles. All articles are written by GIA Graduate Gemologists. We love sharing our passion and expertise so check back soon for new uploads.

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Posts tagged gia graduate gemologist blog

10 Need to Know Facts About Opal

10 Need to Know Facts About Opal

Learn what you need to know about Opals and Opal Jewelry.