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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

October Birthstone: Where Does Opal Come From?

Opal’s kaleidoscopic hues have delighted us for centuries. Loved for its spellbinding play-of-color, this October birthstone seems to be a bit magical and mysterious. Get ready to find out where it comes from – and how it forms. (more…)

February Birthstone: Where Does Amethyst Come From?

If you were born in February, your birthstone is amethyst – a purple gemstone that has starring roles in the jewelry and regalia of kings and queens. The February birthstone is found in the personal collections of Great Britain’s and Russia’s royal families. Britain’s Duchess of Windsor (1896-1986) commissioned a now famous amethyst necklace. Empress Catherine II (1729-1796) of Russia, also known as Catherine the Great, was particularly fond of amethyst and used the gem in buttons, earrings, necklaces and aigrettes (hair ornaments that usually held feathers, or were in the shape of a feather, and were often set with gems). Ancient cultures also loved amethyst and it has been found in 4,400-year-old jewelry. (more…)