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  1. Natural Diamonds | Diamond Stone – GIA C

    Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s surface. Diamond’s carbon atoms are bonded in essentially the same way …

  2. Diamond Description

    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 …

  3. Diamond History and Lore

    Diamond’s splendor has been appreciated for centuries, but there was not much scientific knowledge about it before the twentieth century. Since then, diamond knowledge has grown …

  4. Natural Diamonds | Diamond Stone – GIA C

    The GIA Laboratory-Grown Diamond Report includes the standard GIA color, clarity and cut grading scales for reference purposes. The reports use descriptive terms to identify color and …

  5. GIA Diamond Research

    Diamond’s remarkable potential has spurred the rapid evolution of laboratory-grown gem-quality diamonds in the last 20 years. Natural Diamond Mining. In addition to its value as a gemstone, …

  6. Diamond Quality Factors

    But even if all the other quality factors are equal, the larger diamond is worth much more than the sum of the four smaller diamonds. Carat weight can also be symbolic. While the visual …

  7. How to Buy a Diamond - GIA 4Cs

    While all 4Cs are essential to properly evaluate a diamond, for most buyers, cut is one of the most obvious Cs to the untrained eye. Since it determines the brightness, scintillation and fire of the …

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

    A Study of the Winston Red: The Smithsonian’s New Fancy Red Diamond. Presents the first scientific and historical study conducted on the 2.33 ct Winston Red, the fifth-largest known …

  9. Natural Diamonds | Diamond Stone – GIA C

    Diamond. Diamonds are among nature’s most precious and beautiful creations. Emerald. Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine. …

  10. Diamond Fun Facts

    Nov 24, 2015 · Diamond weight is measured in carats (not carrots or karats). The word carat is derived from keration, the Greek name for the carob tree whose seed was used for centuries …

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