Reference Library

learn_gemology_icon Learn Gemology
Science, tools, gem identification, treatments, valuation and grading of gemstones.
gemstone_values_icon Gemstone Values
Lookup the current retail and wholesale price of any gemstone.
Learn Jewelry & Lapidary
Cutting and faceting stones, jewelry settings, metals, tools and techniques.
List of Gemstones by Name
Detailed information for any gemstone you are interested in.

Business Directory

Looking for gemology related products and services? Visit our Member Business Directory.


IGS seeks to encourage the advancement of students pursuing a higher education. Learn more about the 2015 Clark Scholarship.

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