Classic Diamond Round Brilliant

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  • A close-up of a round, robin's egg blue Montana sapphire with intricate facets. It is placed on a textured, light brown surface. The bottom of the image features the text "EARTH'S TREASURY" accompanied by a geometric logo.

    1.17-Carat Peacock Blue Montana Sapphire (Heated)

    $1,800.00

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  • A round, faceted 2.14-Carat Robin's Egg Blue Montana Sapphire (Heated) is displayed against a textured gray background. The intricate cuts and reflections highlight its brilliance and clarity. The logo "Earth's Treasury" is positioned beneath the gemstone.

    1.34-Carat Peacock Blue Montana Sapphire (Heated)

    $1,800.00

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    Add to cartDone
  • A close-up image of a round, 2.14-carat Robin's Egg Blue Montana Sapphire with intricate facets reflecting light, placed on a textured, gray surface. The text "EARTH'S TREASURY" and a small hexagonal logo are positioned at the bottom of the image.

    1.37-Carat Peacock Blue Montana Sapphire (Heated)

    $2,350.00

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  • A 1.44-carat sky blue Montana Sapphire (heated), round brilliant-cut, is shown on a textured surface with the "Earth's Treasury" logo below it.

    1.44-Carat Sky Blue Montana Sapphire (Heated)

    $2,450.00

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    Add to cartDone
  • An intricately cut, round Robin's Egg Blue Montana Sapphire gemstone with a brilliant 2.14-carat sparkle rests on a textured, stone-like surface. At the bottom of the image, the text "EARTH'S TREASURY" is displayed.

    1.69-Carat Teal Blue Montana Sapphire (Heated)

    $2,300.00

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    Add to cartDone
  • A 1.19-carat rich blue heated Montana Sapphire is displayed on a textured surface, with the "Earth's Treasury" logo and text beneath it.

    1.19-Carat Rich Blue Montana Sapphire (Heated)

    $2,300.00

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    Add to cartDone
  • 1.15-Carat Yellow-Aqua Particolored Montana Sapphire

    1.15-Carat Yellow-Aqua Particolored Montana Sapphire

    $1,700.00

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    Add to cartDone
  • 0.80-Carat Colorless Montana Sapphire

    0.80-Carat Colorless Montana Sapphire

    $800.00

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  • 0.91-Carat Teal Blue Montana Sapphire (Heated)

    0.91-Carat Teal Blue Montana Sapphire (Heated)

    $1,150.00

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    Add to cartDone
  • A 1.66-carat Peacock Blue Montana Sapphire (Heated), round brilliant-cut, rests on a textured gray surface featuring the Earth's Treasury logo and text below.

    1.66-Carat Peacock Blue Montana Sapphire (Heated)

    $4,100.00

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    Add to cartDone
  • A 1.77-carat Deep Blue Montana Sapphire (heated) with a round brilliant cut is displayed on a textured surface, featuring the text "EARTH'S TREASURY" below it.

    1.77-Carat Deep Blue Montana Sapphire (Heated)

    $4,350.00

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    Add to cartDone
  • 2.33-Carat Peacock Blue Montana Sapphire (Heated)

    2.33-Carat Peacock Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • 1.85-Carat Medium Blue Montana Sapphire (Heated)

    1.85-Carat Medium Blue Montana Sapphire (Heated)

    $2,500.00

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    Add to cartDone
  • A 1.75-carat heated Montana Sapphire in medium blue, cut in a round brilliant style, is displayed on a textured surface with the "Earth's Treasury" logo beneath it.

    1.75-Carat Medium Blue Montana Sapphire (Heated)

    $2,750.00

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    Add to cartDone
  • 1.37-Carat Deep Blue-Green Montana Sapphire (Heated)

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

    $2,300.00

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    Add to cartDone
  • 1.59-Carat Deep Blue-Green Montana Sapphire (Heated)

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

    $1,900.00

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    Add to cartDone
  • 1.45-Carat Teal Blue Montana Sapphire (Heated)

    1.45-Carat Teal Blue Montana Sapphire (Heated)

    $2,800.00

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    Add to cartDone
  • 1.18-Carat Teal Blue Montana Sapphire (Heated)

    1.18-Carat Teal Blue Montana Sapphire (Heated)

    $1,750.00

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    Add to cartDone
  • 0.82-Carat Sky Blue Montana Sapphire (Heated)

    0.82-Carat Sky Blue Montana Sapphire (Heated)

    $750.00

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    Add to cartDone
  • 1.15-Carat Medium Blue Montana Sapphire (Heated)

    1.15-Carat Medium Blue Montana Sapphire (Heated)

    $1,550.00

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    Add to cartDone
  • A 1.24-Carat Rich Blue Montana Sapphire (Heated), round and faceted, is shown on a textured gray surface with the Earth's Treasury logo at the bottom of the image.

    1.24-Carat Rich Blue Montana Sapphire (Heated)

    $2,600.00

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    Add to cartDone
  • A 1.37-carat medium blue Montana Sapphire (heated), round brilliant-cut, is shown on a textured gray surface with "EARTH'S TREASURY" displayed below.

    1.37-Carat Medium Blue Montana Sapphire (Heated)

    $3,000.00

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    Add to cartDone
  • 1.23-carat aqua-blue particolored Montana Sapphire (heated) with blue and green hues shown on a textured surface, "EARTH'S TREASURY" logo and text below.

    1.23-Carat Aqua-Blue Particolored Montana Sapphire (Heated)

    $2,150.00

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    Add to cartDone
  • 1.06-Carat Lemon Yellow Australian Sapphire (Heated)

    1.06-Carat Lemon Yellow Australian Sapphire (Heated)

    $1,100.00

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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.