Gem FAQS
Search the FAQ for entries containing:
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What Is A Gemstone and About Grading and Classifying Gemstones (3 entries)
A brief explanation of what is the difference between a gemstone and a mineral crystal and how color and clarity and what they mean. -
Corundum (3 entries)
Ruby and Sapphire -
Opal (2 entries)
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Tourmalines (3 entries)
Tourmalines are allocromatic gemstones which means without impurities they are colorless. Tourmalines such are a complex gemstone that has they have never been successfully synthesized. -
Estate or Antique Jewelry (1 entry)
What is the difference? -
Gemstone & Jewelry News & Updates (7 entries)
The lastest news from GIA and other reputable sources on gemstone enhancements.