What is October’s birthstone?

By cathie | October 4, 2022

October’s birthstone and the 14th wedding anniversary stone is the opal. There are two broad classes of opal: precious and common according to the GIA (Gemological Institute of America). Precious opal displays a play-of-color, common opal does not. October’s birthstone, opals, are not graded by the GIA. Opals are dramatic and one of the world’s…

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