Classic Diamond Round Brilliant

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  • A 1.25-carat heated Montana sapphire, round brilliant-cut, is displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.25-Carat Medium Blue Montana Sapphire (Heated)

    $3,500.00

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  • A 1.72-carat heated Montana sapphire, round and faceted, is showcased on a textured metallic surface with the “Earth’s Treasury” logo and text at the bottom.

    1.72-Carat Deep Blue to Purple Color Change Montana Sapphire (Heated)

    $3,300.00

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  • A 1.03-carat, round brilliant-cut Montana sapphire (heated) is displayed on a textured gray surface with “Earth’s Treasury” at the bottom.

    1.03-Carat Pale Aqua Montana Sapphire (Heated)

    $1,800.00

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  • A round brilliant-cut 0.79-carat heated Montana sapphire is shown on a light textured surface with "Earth's Treasury" at the bottom.

    0.79-Carat Steely Blue Montana Sapphire (Heated)

    $800.00

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  • A 1.18-carat heated Montana sapphire with a peachy-pink hue is shown on a textured metallic surface, featuring "EARTH'S TREASURY" at the bottom.

    1.18-Carat Pale Violet-Orange Particolored Montana Sapphire (Heated)

    $1,800.00

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  • A 1.29-carat heated Montana Sapphire, round and faceted, rests on a textured gray surface with "Earth's Treasury" below it.

    1.29-Carat Teal Blue Montana Sapphire (Heated)

    $2,300.00

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  • 1.30-carat heated Montana sapphire, round brilliant-cut, showcased on a textured gray surface with "EARTH'S TREASURY" text at the bottom.

    1.30-Carat Teal Blue Montana Sapphire (Heated)

    $2,600.00

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  • A 1.64-carat heated Montana sapphire, round brilliant-cut and blue in color, is shown on a gray textured surface with "EARTH'S TREASURY" written below.

    1.64-Carat Pale Sky Blue Montana Sapphire (Heated)

    $3,700.00

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  • A 1.70-carat round brilliant-cut heated Montana sapphire is displayed upright on a textured gray surface, with the "Earth's Treasury" logo shown at the bottom.

    1.70-Carat Blue-Teal Particolored Montana Sapphire (Heated)

    $4,200.00

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  • A round, deep blue-green 1.42-carat Montana Sapphire (Heated) is displayed on a textured light surface with "EARTH'S TREASURY" below.

    1.42-Carat Deep Blue-Green Montana Sapphire (Heated)

    $2,550.00

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  • 1.78-Carat Montana Sapphire (Heated), round brilliant-cut, displayed on a textured gray surface with the "Earth's Treasury" logo and text beneath the stone.

    1.78-Carat Deep Blue-Green Montana Sapphire (Heated)

    $3,050.00

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  • A 2.00-carat round brilliant-cut heated Montana Sapphire is displayed on a light textured surface with "EARTH'S TREASURY" below.

    2.00-Carat Cornflower Blue Montana Sapphire (Heated)

    $6,900.00

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  • A 2.63-carat heated Montana sapphire, round and faceted in blue, is shown on a textured light surface with the Earth's Treasury logo below.

    2.63-Carat Peacock Blue Montana Sapphire (Heated)

    $7,850.00

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  • A 3.05-carat heated Montana sapphire with a round brilliant cut is displayed on a textured, light-colored surface with the text "EARTH'S TREASURY" below.

    3.05-Carat Peacock-Teal Particolored Montana Sapphire (Heated)

    $10,700.00

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  • A 1.52-carat round brilliant-cut Montana Sapphire is shown on a textured gray surface with "EARTH'S TREASURY" displayed at the bottom.

    1.52-Carat Colorless Montana Sapphire

    $3,500.00

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  • A 4.12-carat heated Montana sapphire, round and faceted in blue-green hues, is displayed on a textured metallic surface with "Earth's Treasury" below.

    4.12-Carat Rich Teal Montana Sapphire (Heated)

    $14,000.00

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  • A 0.82-Carat Montana Sapphire (Heated), round and faceted, is shown on a textured light gray surface with "EARTH'S TREASURY" at the bottom.

    0.82-Carat Medium Blue Montana Sapphire (Heated)

    $700.00

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  • A round, faceted blue 1.89-carat Montana Sapphire (Heated) is displayed on a textured surface, with "Earth's Treasury" written below.

    1.89-Carat Medium Blue Montana Sapphire (Heated)

    $2,950.00

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  • A 2.30-carat heated Montana Sapphire gemstone, round and blue-green with facets, is displayed on a textured gray surface with "EARTH'S TREASURY" below.

    2.30-Carat Deep Blue-Green Montana Sapphire (Heated)

    $6,900.00

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  • A 2.53-carat heated Montana sapphire, round brilliant-cut and blue, is displayed on a textured surface with the text "EARTH'S TREASURY" below it.

    2.53-Carat Medium Blue Montana Sapphire (Heated)

    $9,750.00

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  • A 1.33-carat round-cut heated Montana sapphire is displayed on a textured gray metallic surface with the Earth’s Treasury logo at the bottom.

    1.33-Carat Steely Blue Montana Sapphire (Heated)

    $2,650.00

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  • A 1.50-carat heated Montana sapphire gemstone is shown on a textured gray surface, with the Earth's Treasury logo at the bottom.

    1.50-Carat Teal Blue Montana Sapphire (Heated)

    $3,000.00

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    Add to cartDone
  • A 1.60-carat heated Montana Sapphire, round brilliant-cut and blue, is displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.60-Carat Teal Blue Montana Sapphire (Heated)

    $3,950.00

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    Add to cartDone
  • A 2.20-carat round, faceted deep pink Umbalite Garnet is displayed on a textured light gray surface with the text "Earth's Treasury" below.

    2.20-Carat Rich Magenta Pink Rhodolite Garnet

    $1,100.00

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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.