Being the most brilliant substance in the world, diamonds have been an object of fascination for centuries. The word diamond is derived from the Greek adamas, which means unbreakable. And indeed, the atomic structure of a diamond makes it the hardest, most imperishable natural material known to man. Diamond is thousands of times harder than corundum, the next hardest material, from which rubies and sapphires are created. The superior hardness of a diamond contributes to its status as a superior gemstone. Since they can only be scratched by other diamonds, even after many years of daily wear, diamonds will preserve their sharp edges and facets intact, whilst most other stones will have become worn and chipped.
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