0.66

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  • A 0.66-carat round-cut red Mozambique ruby (heated) is displayed on a textured gray surface with the Earth's Treasury logo at the bottom.

    0.66-Carat Red Mozambique Ruby (Heated)

    $2,950.00

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  • A 0.66-carat Montana sapphire with intricate facets rests on a textured gray surface.

    0.66-Carat Colorless Montana Sapphire

    $750.00

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  • 0.66-Carat Aqua Blue Songea Sapphire

    0.66-Carat Aqua Blue Songea Sapphire

    $650.00

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  • 0.66-Carat Light Yellow Montana Sapphire

    0.66-Carat Light Yellow Montana Sapphire

    $600.00

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Natural Gemstone Jewelry & Loose Gemstones at Earth’s Treasury

At Earth’s Treasury, we make finding your color easy with one of the widest selections of ethically sourced gemstones available, from Montana sapphires and garnets to tourmaline and emeralds. Our team of talented designers and jewelers is dedicated to creating custom gemstone jewelry that’s as unique as your story. Whether you’re drawn to classic pieces or dream up a one-of-a-kind engagement ring, we’ll guide you every step of the way to ensure your jewelry feels personal, original, and entirely you.