Classic Diamond Round Brilliant

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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • A 1.42-carat heated Montana sapphire with a round, brilliant cut is displayed on a textured silver-gray surface featuring the "Earth's Treasury" logo at the bottom.

    1.42-Carat Light Aqua Blue Montana Sapphire (Heated)

    $2,400.00

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  • A 1.44-carat heated Montana sapphire, round and blue-green with facets, is displayed on a textured gray surface. "Earth's Treasury" appears at the bottom of the image.

    1.44-Carat Teal Green Montana Sapphire (Heated)

    $2,650.00

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    Add to cartDone
  • A 1.48-carat round-cut heated Montana sapphire with brilliant facets is displayed on a textured light gray surface, with the Earth’s Treasury logo below the gem.

    1.48-Carat Teal Blue Montana Sapphire (Heated)

    $1,800.00

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    Add to cartDone
  • A 1.49-carat faceted Montana sapphire (heated) is displayed on a textured gray surface with "Earth's Treasury" at the bottom.

    1.49-Carat Peacock Blue Montana Sapphire (Heated)

    $2,900.00

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    Add to cartDone
  • A 1.55-carat heated Montana sapphire, round brilliant-cut and blue, is displayed upright on a textured gray surface with the "Earth's Treasury" logo below it.

    1.55-Carat Teal Blue Montana Sapphire (Heated)

    $2,650.00

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    Add to cartDone
  • A 1.61-carat heated Montana sapphire with a round brilliant cut rests on a textured gray surface, with "Earth's Treasury" displayed at the bottom.

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

    $3,600.00

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  • A 1.61-carat heated Montana sapphire, round brilliant-cut and blue in color, displayed on a textured gray surface with the "Earth's Treasury" logo and text below.

    1.61-Carat Teal Blue Montana Sapphire (Heated)

    $3,100.00

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    Add to cartDone
  • A 1.67-carat heated Montana sapphire with a round cut is displayed on a textured gray surface, featuring the "Earth's Treasury" logo at the bottom.

    1.67-Carat Teal Montana Sapphire (Heated)

    $2,250.00

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    Add to cartDone
  • A 0.92-carat round-cut heated Montana sapphire with multiple facets is displayed on a textured light gray surface. "EARTH'S TREASURY" appears at the bottom.

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

    $900.00

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  • A 2.42-carat heated Montana Sapphire, cut in a round brilliant shape with blue-green hues, is displayed on a textured gray surface featuring the text "EARTH'S TREASURY" below.

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

    $8,000.00

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  • A 2.52-carat heated Montana sapphire, round-cut and blue, is displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

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

    $8,850.00

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    Add to cartDone
  • A 2.67-carat heated Montana sapphire, round brilliant-cut and blue, displayed on a textured grey surface with the Earth’s Treasury logo and text below.

    2.67-Carat Peacock Blue Montana Sapphire (Heated)

    $4,850.00

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    Add to cartDone
  • A 3.23-carat heated round brilliant-cut Montana sapphire is displayed on a textured gray surface, featuring the "Earth's Treasury" logo at the bottom.

    3.23-Carat Peacock Blue Montana Sapphire (Heated)

    $7,200.00

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    Add to cartDone
  • A 0.84-Carat Montana Sapphire (Heated) with a brilliant cut shines blue on a textured light gray surface, with "EARTH'S TREASURY" displayed below.

    0.84-Carat Teal Blue Montana Sapphire (Heated)

    $950.00

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  • A 0.92-carat heated Montana sapphire, round and faceted with a pale yellow-green hue, is shown on a textured surface with "EARTH'S TREASURY" at the bottom.

    0.92-Carat Yellow-Green Particolored Montana Sapphire (Heated)

    $900.00

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  • A round, faceted 0.96-carat heated Montana sapphire is shown on a light, textured surface with "EARTH'S TREASURY" displayed below it.

    0.96-Carat Teal Blue Montana Sapphire (Heated)

    $1,200.00

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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.