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  • A 1.63-carat aqua blue Montana Sapphire (Heated), round brilliant-cut, is shown on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.63-Carat Aqua Blue Montana Sapphire (Heated)

    $3,700.00

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    Add to cartDone
  • 1.00-Carat Rich Blue Montana Sapphire (Heated)

    1.00-Carat Rich Blue Montana Sapphire (Heated)

    $1,800.00

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    Add to cartDone
  • 1.07-Carat Orange-Yellow Bicolored Montana Sapphire (Heated)

    1.07-Carat Orange-Yellow Bicolored Montana Sapphire (Heated)

    $1,100.00

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    Add to cartDone
  • A 1.70-carat Teal Blue Montana Sapphire (Heated) with square cut and intricate facets rests on a textured gray surface. "EARTH'S TREASURY" is shown below the gemstone.

    1.70-Carat Teal Blue Montana Sapphire (Heated)

    $3,400.00

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    Add to cartDone
  • A blue-green Montana sapphire in our "Aurora" square cushion design

    2.09-Carat Dark Blue-Green Montana Sapphire (Heated)

    $4,200.00

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    Add to cartDone
  • 1.11-Carat Pale Yellow Montana Sapphire (Heated)

    1.11-Carat Pale Yellow Montana Sapphire (Heated)

    $1,100.00

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

    1.12-Carat Peacock Blue Montana Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • 1.29-Carat Peacock Blue Montana Sapphire (Heated), round-cut, shown on a textured gray surface with the "Earth's Treasury" logo at the bottom.

    1.29-Carat Peacock Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • A 1.31-carat medium blue heated Montana Sapphire, cut in a round brilliant style, rests on a textured gray surface with "Earth's Treasury" at the bottom.

    1.31-Carat Medium Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • A 1.47-carat medium blue Montana Sapphire (heated), round and faceted, rests on a textured gray background with "EARTH'S TREASURY" below.

    1.47-Carat Medium Blue Montana Sapphire (Heated)

    $2,200.00

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    Add to cartDone
  • A 1.65-carat Medium Blue Montana Sapphire (Heated), round brilliant-cut, is displayed upright on a textured gray surface with the "Earth's Treasury" logo and text underneath.

    1.65-Carat Medium Blue Montana Sapphire (Heated)

    $3,000.00

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    Add to cartDone
  • 0.90-Carat Aqua Blue Montana Sapphire (Heated)

    0.90-Carat Aqua Blue Montana Sapphire (Heated)

    $900.00

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    Add to cartDone
  • A blue Madagascar sapphire in our "Triptych" trillion design

    1.10-Carat Light Violet-Blue Madagascar Sapphire

    $1,650.00

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    Add to cartDone
  • A gray Madagascar sapphire in our "Testudo" oval design

    1.66-Carat Near Colorless Madagascar Sapphire

    $2,500.00

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    Add to cartDone
  • A yellow Madagascar sapphire in our "Helena" oval design

    1.70-Carat Light Yellow Madagascar Sapphire

    $2,100.00

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    Add to cartDone
  • A 1.25-Carat Medium Blue Montana Sapphire (Heated) rests on a textured gray surface with "EARTH'S TREASURY" and a geometric logo beneath it.

    1.25-Carat Medium Blue Montana Sapphire (Heated)

    $2,500.00

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    Add to cartDone
  • A 1.43-carat Peacock Blue Montana Sapphire (Heated), round and faceted, displays vivid blue-teal hues as it rests on a textured gray surface with the Earth’s Treasury logo beneath it.

    1.43-Carat Rich Blue-Teal Particolored Montana Sapphire (Heated)

    $2,500.00

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

    1.15-Carat Blue-Green Montana Sapphire (Heated)

    $1,400.00

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    Add to cartDone
  • 1.16-Carat Aqua Blue Montana Sapphire (Heated)

    1.16-Carat Aqua Blue Montana Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • A 1.72-carat orange-yellow particolored Montana sapphire (heated), cut in a faceted triangle, displayed on a textured gray background with the "Earth's Treasury" logo at the bottom.

    1.72-Carat Orange-Yellow Particolored Montana Sapphire (Heated)

    $2,900.00

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    Add to cartDone
  • 1.80-Carat Pale Green-Orange Bicolored Montana Sapphire (Heated)

    1.80-Carat Pale Green-Orange Bicolored Montana Sapphire (Heated)

    $3,200.00

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    Add to cartDone
  • 1.34-Carat Golden Yellow Montana Sapphire (Heated)

    1.34-Carat Golden Yellow Montana Sapphire (Heated)

    $1,675.00

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    Add to cartDone
  • 0.61-Carat Light Pink Montana Sapphire

    0.61-Carat Light Pink Montana Sapphire

    $600.00

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    Add to cartDone
  • 1.23-Carat Golden Yellow Montana Sapphire (Heated)

    1.23-Carat Golden Yellow Montana Sapphire (Heated)

    $1,300.00

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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.