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

Oval mixed-cut red gemstone photographed face-up against a pale gray background at Sapphire Row, showing a vivid slightly purplish red with bright crown facets and a deeper crimson core Garnets
Sapphire Row

Red Gemstones: A Gemologist’s Guide to Choosing the Right Red

Ruby, red spinel, garnet and rubellite all read as red — but they behave very differently in color, durability and...

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