Gemstone Guides

Close-up of black tourmalinated quartz gemstones showcased on white paper with ribbons.

A Mohs Hardness Chart for Every Ring Stone

A simple Mohs hardness chart for diamond, sapphire, ruby, emerald, spinel and more, and what the scale does not tell you.

A Mohs Hardness Chart for Every Ring Stone

A simple Mohs hardness chart for diamond, sapphire, ruby, emerald, spinel and more, and what the scale does not tell you.

A close-up view of assorted polished gemstones with vibrant colors and textures.

Birthstones by Month as Engagement Rings

Each month's birthstone as an engagement ring idea, with notes on hardness and care.

Birthstones by Month as Engagement Rings

Each month's birthstone as an engagement ring idea, with notes on hardness and care.

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