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

Heart-shaped brilliant-cut tanzanite in a medium to medium-dark violetish blue, held in polished stainless steel tweezers at Sapphire Row, showing violet flashes across the crown facets Aquamarine
Sapphire Row

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

Sapphire, tanzanite, aquamarine, spinel, cuprian tourmaline, zircon and apatite can all read as blue across a tray — and they...

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