0.80

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  • A 0.80-carat oval-cut ruby is displayed on a textured, light-colored surface with "EARTH'S TREASURY" at the bottom.

    0.80-Carat Burmese Ruby (Heated)

    $1,900.00

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  • A 0.80-carat heated Montana sapphire, faceted in an oval shape, is displayed on a textured light background with the "EARTH'S TREASURY" text and logo beneath it.

    0.80-Carat Deep Blue Montana Sapphire (Heated)

    $800.00

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  • A faceted pear-shaped 0.80-carat Colombia emerald (oiled) rests on a textured surface, with "EARTH'S TREASURY" and a hexagon logo at the bottom.

    0.80-Carat Bright Green Colombian Emerald (Oiled)

    $1,400.00

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  • A rectangular, faceted blue 0.80-carat Montana sapphire (heated) is displayed on a textured, light surface with "EARTH'S TREASURY" at the bottom.

    0.80-Carat Rich Blue to Purple Color Change Montana Sapphire (Heated)

    $800.00

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  • A 0.80-carat heated Montana sapphire with a faceted cut is showcased on a textured gray surface, with "Earth's Treasury" visible beneath.

    0.80-Carat Sky-Blue Particolored Montana Sapphire (Heated)

    $800.00

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  • A 0.80-carat Montana sapphire with a heated, faceted round cut is displayed on a textured surface.

    0.80-Carat Light Sky Blue Montana Sapphire (Heated)

    $800.00

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  • 0.80-Carat Golden Yellow Montana Sapphire (Heated)

    0.80-Carat Golden Yellow Montana Sapphire (Heated)

    $800.00

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  • A radiant 2.14-carat Robin's Egg Blue Montana Sapphire, heated for enhancement, displayed on a textured surface, catching light and showcasing its blue hues and intricate facets. The text "EARTH'S TREASURY" is visible below the gemstone.

    0.80-Carat Pale Sky Blue Montana Sapphire (Heated)

    $650.00

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  • 0.80-Carat Sky Blue Montana Sapphire (Heated)

    0.80-Carat Sky Blue Montana Sapphire (Heated)

    $800.00

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  • 0.80-Carat Colorless Montana Sapphire

    0.80-Carat Colorless Montana Sapphire

    $800.00

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  • A blue Montana sapphire in our "Serendipity" oval design

    0.80-Carat Medium Blue Montana Sapphire (Heated)

    $750.00

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  • The 0.80-carat pale kiwi green grossular garnet, featuring a faceted pear shape, rests on a textured surface.

    0.80-Carat Pale Kiwi Green Grossular Garnet

    $400.00

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  • 0.80-Carat Sky Blue Montana Sapphire

    0.80-Carat Sky Blue Montana Sapphire

    $1,100.00

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  • A blue Montana sapphire in an Old European-style cut (OEC)

    0.80-Carat Medium Blue Montana Sapphire (Heated)

    $700.00

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    Add to cartDone

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.