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  1. Amethyst Gemstone | Amethyst Stone - GIA

    Amethyst Gemstone is the purple variety of the Quartz mineral. Amethyst’s purple color can range from a light lilac to a deep, intense royal purple, and from brownish to vivid.

  2. Amethyst History and Lore - GIA

    Because of its wine-like color, early Greek legends associated amethyst with Dionysus, the god of wine and pleasure. The Romans called him Bacchus. Other legends reflected beliefs that …

  3. Amethyst - Gemological Institute of America

    It is the purple variety of the mineral quartz. It was as valuable as ruby and emerald until the 1800s when more amethyst was found in the country of Brazil. It is the most valuable quartz …

  4. GIA Gem Encyclopedia | Complete List Of Gemstones

    GIA’s Guide to Gemstones: Gem Encyclopedia GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page …

  5. Amethyst Care and Cleaning Guide - GIA

    Common substances like sand and dust are composed mostly of quartz, the mineral species that includes the purple variety amethyst. So, while amethyst is a great gemstone for use in …

  6. Amethyst Quality Factors - GIA

    Today, because of its availability and affordability, amethyst is used in mass-market jewelry as well as custom designer pieces. This makes amethyst one of the world’s most popular colored …

  7. Amethyst Description - GIA

    Amethyst is the purple variety of the quartz mineral species. It’s the gem that’s most commonly associated with the color purple, even though there are other purple gems such as sapphire …

  8. GIA - Report Check

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

    Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.

  10. Ametrine Gemstone | Natural Ametrine Stone - GIA

    When quartz displays the colors of amethyst and citrine in a single gem, the material is called ametrine or amethyst-citrine. Ametrine’s only commercial source is the Anahi mine in Bolivia.