Reference Library

Reference Information

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Reference Charts & Materials

Lapidary – The Fundamentals of Lapidary

Jewelry

Gemology

An Introduction to Gemology

Practical Gemology (Premium Content = Premium Content learn more)

Advanced Gemology (Premium Content = Premium Content learn more)

Advanced Gem Information (Premium Content = Premium Content learn more)

Gemstone Grading (Premium Content = Premium Content learn more)

General

Colored Stones

Diamonds

Opals

Appraising (Premium Content = Premium Content learn more)

Products and Services Directory

Looking for gemology related products and services? Visit our Products and Services Directory.

Scholarships

IGS seeks to encourage the advancement of students pursuing a higher education. Learn more about the 2014 Clark Scholarship.

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