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Diamond Facts

  • The largest Diamond ever found:
    Cullinan at 3,106 carats.
  • What is the hardest natural substance on Earth?
    The Diamond.
  • 80% of the world's diamonds are not suitable for Jewelry.
  • Is a Diamond Indestructible?
    No. The fact that Diamonds are a hard substance refers to their ability to withstand scratching. But that is different than toughness, which refers to the ability to withstand breaking or cleavage.
  • How old are most diamonds which are found in nature?
    1 billion to 3 billion years, by most accounts.
  • How do diamonds reach us?
    They are formed deep within the Earth's crust, and come to the surface via Volcanoes. Most diamonds are found in Kimberlite, which is volcanic rock.

Next - Gem labs and the science, art and marketing of diamonds -------------->



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