Gemstone Journal

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

Morganite gemstones from the Sapphire Row morganite collection
Gem Guides
Sapphire Row

Morganite Gemstone: A Buyer's Guide to Color and Care

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Tanzanite Gemstone: oval blue tanzanite in a white circle Gem Guides
Sapphire Row

Tanzanite Gemstone: A Buyer's Guide to Color, Cut and Care

Tanzanite is heated, shows three colors and comes from one place on Earth. How to judge its color and cut, and how to wear it well.

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December Birthstone: blue tanzanite, blue zircon, blue tanzanite and blue zircon Birthstones
Sapphire Row

December Birthstone: A Buyer's Guide to Tanzanite, Zircon and Turquoise

December has three birthstones: tanzanite, zircon and turquoise. What each really is, how it is treated and how it wears.

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Purple Gemstones: purple amethyst, purple sapphire, purple spinel and purple rhodolite garnet on a white card over a soft purple page Color Guides
Sapphire Row

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

Amethyst, purple sapphire, spinel, tanzanite and rhodolite: what separates a fine purple from a dull one, and how each wears.

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Blue Gemstones: blue tanzanite, blue sapphire, blue aquamarine and blue spinel on a white card over a soft blue page Color Guides
Sapphire Row

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

Sapphire, tanzanite, aquamarine, spinel and more: what makes each one blue, how to tell them apart, and which suit an everyday ring.

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