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Amethyst is a violet variety of quartz often used in jewelry and loved by many. The name comes from the ancient Greek  ("not") and ("intoxicated"), a reference to the belief that the stone protected its owner from drunkenness. According to the American Gem Society, Amethyst is purple quartz and is a beautiful blend of violet and red that can be found in every corner...

Also known as an Ideal Cut A diamond proportioned in accordance with the calculations published in 1919 by mathematician Marcel Tolkowlsky.