Classic Diamond Round Brilliant

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  • A 1.16-carat heated Montana sapphire with blue and green hues sits on a textured metallic surface, "Earth's Treasury" displayed below.

    1.16-Carat Pale Aqua Montana Sapphire (Heated)

    $2,000.00

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  • A 1.16-carat heated Montana sapphire, round brilliant-cut and blue, is displayed on a textured gray surface with “Earth’s Treasury” at the bottom.

    1.16-Carat Aqua Blue Montana Sapphire (Heated)

    $1,700.00

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  • 1.17-carat heated Montana sapphire with a round brilliant cut showcased on a textured gray surface, featuring the "Earth's Treasury" text at the bottom.

    1.17-Carat Medium Blue Montana Sapphire (Heated)

    $1,350.00

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    Add to cartDone
  • A 1.19-carat heated Montana sapphire, brilliant-cut and blue, displayed on a textured gray surface with the "Earth's Treasury" logo at the bottom.

    1.19-Carat Light Sky Blue Montana Sapphire (Heated)

    $2,050.00

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  • A 1.20-carat heated Montana sapphire, round and faceted in blue-green hues, is displayed on a textured gray surface with "Earth’s Treasury" at the bottom.

    1.20-Carat Rich Teal-Green Particolored Montana Sapphire (Heated)

    $1,400.00

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  • A 1.21-carat faceted Montana sapphire (heated), round and blue-green, displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.21-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $1,300.00

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    Add to cartDone
  • 1.21-Carat Montana Sapphire (Heated), round brilliant-cut blue gemstone, displayed on a textured gray surface with the "Earth's Treasury" logo at the bottom.

    1.21-Carat Teal Montana Sapphire (Heated)

    $1,350.00

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    Add to cartDone
  • A 1.22-carat, round, brilliant-cut Montana sapphire (heated) is displayed on a textured gray surface with "EARTH'S TREASURY" beneath it.

    1.22-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $2,150.00

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    Add to cartDone
  • A 1.26-carat heated Montana sapphire, round brilliant-cut and blue, stands upright on a textured gray surface with "EARTH'S TREASURY" displayed below.

    1.26-Carat Aqua Blue Montana Sapphire (Heated)

    $1,900.00

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  • A 1.27-carat heated Montana Sapphire, round brilliant-cut and blue, is displayed on a textured gray surface with "Earth's Treasury" at the bottom.

    1.27-Carat Aqua-Yellow Particolored Montana Sapphire (Heated)

    $1,350.00

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  • A 1.28-carat heated Montana sapphire with a round cut and blue-green hue rests on a textured gray surface, featuring the “Earth’s Treasury” label at the bottom.

    1.28-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • A 1.28-carat heated Montana Sapphire (round brilliant-cut, blue) rests on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.28-Carat Teal Blue Montana Sapphire (Heated)

    $2,200.00

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    Add to cartDone
  • A 1.29-carat heated Montana sapphire, round brilliant-cut and blue, is displayed on a textured surface with the text "EARTH'S TREASURY" below.

    1.29-Carat Steely Blue to Purple Color Change Montana Sapphire (Heated) (Copy)

    $1,900.00

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  • A 1.29-carat heated Montana sapphire, cut in a round brilliant shape, is shown on a textured gray surface with “Earth’s Treasury” at the bottom.

    1.29-Carat Teal Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • A round, faceted 1.31-carat heated Montana sapphire is displayed on a textured light gray surface with the text "EARTH'S TREASURY" below it.

    1.31-Carat Peacock Blue Montana Sapphire (Heated)

    $2,000.00

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  • A 1.31-carat heated Montana sapphire with a round brilliant cut is displayed on a textured grey surface, with "Earth's Treasury" visible at the bottom.

    1.31-Carat Teal Blue Montana Sapphire (Heated)

    $2,600.00

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    Add to cartDone
  • A 1.31-carat heated Montana sapphire, round brilliant-cut and blue, showcased on a textured metallic surface with "Earth's Treasury" displayed at the bottom.

    1.31-Carat Aqua Blue Montana Sapphire (Heated)

    $2,200.00

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    Add to cartDone
  • A 1.34-carat heated Montana sapphire, round brilliant-cut and blue, is shown on a textured metallic surface with "EARTH'S TREASURY" displayed below.

    1.34-Carat Teal Montana Sapphire (Heated)

    $2,250.00

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    Add to cartDone
  • A 1.35-carat heated Montana sapphire in round brilliant cut is displayed on a textured gray surface, with "EARTH'S TREASURY" shown at the bottom.

    1.35-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $1,600.00

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    Add to cartDone
  • 1.36-carat heated Montana sapphire in a round brilliant cut displayed on a textured gray surface, with "Earth's Treasury" at the bottom.

    1.36-Carat Steely Blue to Purple Color Change Montana Sapphire (Heated)

    $2,300.00

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    Add to cartDone
  • A 1.37-carat heated Montana sapphire with a round brilliant cut and blue-green color rests on a textured gray surface, with "EARTH'S TREASURY" shown below.

    1.37-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $2,300.00

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    Add to cartDone
  • A 1.37-carat heated Montana sapphire, round and blue with faceted cuts, is displayed on a textured gray surface, featuring the text "EARTH'S TREASURY" and a hexagon logo below.

    1.37-Carat Deep Peacock Blue Montana Sapphire (Heated)

    $1,500.00

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    Add to cartDone
  • A round, faceted 1.38-carat heated Montana sapphire is displayed on a textured, metallic surface with the text "Earth's Treasury" below.

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

    $2,450.00

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    Add to cartDone
  • A 1.42-carat heated Montana sapphire with a round brilliant cut and blue-green hue is displayed on a textured silvery surface, featuring the "Earth's Treasury" logo beneath it.

    1.42-Carat Teal Montana Sapphire (Heated)

    $2,400.00

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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.