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  1. Diamond - Wikipedia

    Diamond is a mineral form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is a tasteless, odorless, strong, brittle solid, a poor conductor of electricity, …

  2. Natural Diamonds | Diamond Stone – GIA C

    Nov 17, 2025 · Diamonds are among nature’s most precious and beautiful creations. Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s …

  3. Diamond | Definition, Properties, Color, Applications, & Facts

    Mar 25, 2026 · 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, …

  4. Diamond: A gem mineral with properties for industrial use

    What is Diamond? Diamond is a rare, naturally occurring mineral composed entirely of carbon. Each carbon atom in a diamond is surrounded by four other carbon atoms and connected to each of them …

  5. Diamond: The mineral Diamond information and pictures

    Detailed description, properties, and locality information guide about the precious gemstone and mineral diamond.

  6. DIAMOND Definition & Meaning - Merriam-Webster

    Diamond, the hardest substance found in nature, was known to the ancient Greeks. They called the gemstone adamas, using the same word they used for any unbreakable or indestructible substance, …

  7. Diamonds: Formation, grading and other facts | Live Science

    Jan 18, 2022 · Diamond, on the other hand, is one of the hardest known substances – so hard it can only be scratched with another diamond. The difference lies in the arrangement of carbon atoms.

  8. Diamond (gemstone) - Wikipedia

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

  9. Diamond: Mineral information, data and localities. - mindat.org

    Diamond is the hardest natural substance known. It is formed deep in the mantle and is only brought to the surface via kimberlite pipes, lamprophyres, ...

  10. Diamond Gemstones: History, Meaning, Value & More

    Sep 19, 2015 · 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 …