Round brilliant-cut amethyst in a vivid reddish purple with violet-purple flashes around the crown, photographed face-up on a pale gray background at Sapphire Row
Amethyst
Sapphire Row

Purple Gemstones: A Gemologist's Guide to Choosing the Right Purple

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Gemstone knowledge from the source — sourcing insights, care guides, and buying advice to help you choose stones and jewelry with confidence.

Gemstone Journal

Round precious opal cabochon photographed against black at Sapphire Row, showing vivid green, blue, orange and red play-of-color across a translucent grayish white body - the traditional October birthstone Birthstones
Sapphire Row

October Birthstone: A Gemologist's Guide to Opal and Tourmaline

October has two birthstones, and they could hardly be less alike. A gemologist explains how opal's play-of-color actually works, why...

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