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  1. Gemological Institute Of America | All About Gemstones - GIA

    Learn about the principles, mechanisms, and characteristics of luminescence that create the impressive and memorable glow of gemstones. Learn the latest trends by GIA on the laboratory-grown diamond …

  2. An Introduction to Gemology - International Gem Society

    An Introduction to Gemology The basic building blocks of understanding the science of gemstones.

  3. Gemology - Wikipedia

    Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a specific interdisciplinary branch of mineralogy. Some jewelers (and many non-jewelers) are …

  4. Gemology Online: Online Gemological Expertise

    and The Gemology Project: a wiki-style database for anyone interested in gemstones and gemology GemologyOnline.com is an interactive gemmological resource dedicated to a better understanding of …

  5. Unlock Gemology Secrets - Learn Gemstone Science

    Nov 11, 2025 · Explore jewelry science, dive into gemology, learn diamond grading, gemstone evaluation, career paths & become a skilled buyer or professional gemologist.

  6. What is Gemology? IIGL's explanation of Gemology

    Gemology, in its simplest form, is the scientific study of gemstones. It encompasses an array of disciplines, blending aspects of mineralogy, geology, chemistry, and even artistry.

  7. Jewelry Appraisal Process - American Gem Society

    Earning these titles requires a diploma in gemology and additional advanced education, and experience in determining the value of gemstones and jewelry. All CGA and ICGA titleholders also must pass …

  8. Home | Gemology 101

    Explore the captivating universe of gemstones with Gemology 101, where we unravel the mysteries and allure of these precious treasures. Whether you're an enthusiast, a collector, or a novice, our …

  9. International Gem Society

    Information and educational services for everyone interested in gemstones. For gemologists, hobbyists, jewelers, lapidaries and everyone in between. Learn how to get started with the International Gem …

  10. Graduate Gemologist Program

    The GIA Graduate Gemologist diploma program delivers a comprehensive gemology education on diamonds and colored stones. Using the latest gemological equipment, you will work with real …