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

Unheated round brilliant-cut Tanzanian parti sapphire held in stainless steel tweezers at Sapphire Row, showing a medium bluish green teal body with yellowish green and blue-green color zoning across the crown Color Zoning
Sapphire Row

Parti Sapphires and Teal Sapphires: The Beauty of Color Zoning

Parti sapphires show two or more colors in a single natural crystal. A gemmologist explains what causes the zoning, how...

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