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 brilliant-cut violet-blue tanzanite photographed face-up at Sapphire Row, its crown facets showing bright, evenly distributed light return and no window Brilliance
Sapphire Row

Gemstone Cut Quality: How to Read Light in a Colored Stone

Color is only potential. Cut is what turns it into something your eye can see. A practical guide to judging...

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