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  1. www.gia.edu › gem-encyclopediaGIA Gem Encyclopedia | Complete List Of Gemstones

    GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research.

    • English

      Learn about the gem-quality variety of cordierite, iolite,...

    • Topaz

      Other Locations Online Education. Back; Overview ... Topaz’s...

    • Turquoise

      Turquoise - GIA Gem Encyclopedia | Complete List Of...

    • Alexandrite

      Larger, higher-quality gems rise in price dramatically....

    • Tanzanite

      Tanzanite - GIA Gem Encyclopedia | Complete List Of...

    • Gem Encyclopaedia

      Dazzling brilliance. Captivating color. The planet’s most...

    • GIA Gem Encyclopedia

      gia 宝石指南：宝石百科全书. gia...

    • Sunstone

      Sunstone is a member of the feldspar group. Both the...

  2. www.gia.edu › diamondNatural Diamonds | Diamond Stone – GIA C

    View the Gem Encyclopedia. Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.

  3. Videos

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  4. www.gia.edu › diamond-descriptionDiamond Description - All About Gemstones - GIA

    Diamond is the only gem made of a single element: It is typically about 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry. Some trace elements can influence its color or crystal shape.

  5. en.wikipedia.org › wiki › Diamond_(gemstone)Diamond (gemstone) - Wikipedia

    Diamond [a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times.

  6. Imágenes

    • Minerals and gemstones, Colored diamonds, Gems jewelry
    • Alphabetical List of Precious and Semiprecious Gemstones
    • Diamonds Gemstone Information - GemSelect
    • Big Unique Gems Collection Stock Photo - Image: 7425460
    • Gemstones: Meanings and Uses | Wicca Daily

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  7. en.wikipedia.org › wiki › DiamondDiamond - Wikipedia

    The dispersion of white light into spectral colors is the primary gemological characteristic of gem diamonds. In the 20th century, experts in gemology developed methods of grading diamonds and other gemstones based on the characteristics most important to their value as a gem.

  8. www.gemrockauctions.com › learn › a-z-of-gemstonesDiamond Gemstones: History, Meaning, Value & More

    Diamonds are dazzling, colorless carbon gemstones known for their durability, prestige, and popularity in engagement rings. Come along as we unearth the diamond’s history, meaning, and value!

  9. www.britannica.com › topic › diamond-gemstoneDiamond | Definition, Properties, Color, Applications, & Facts

    10 de jun. de 2024 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.