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  • A 1.31-carat teal blue Montana Sapphire (heated) with a round, faceted cut rests on a textured light gray surface, with "EARTH'S TREASURY" written below.

    1.31-Carat Teal Blue Montana Sapphire (Heated)

    $2,600.00

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  • 1.32-carat medium blue heated Montana sapphire with intricate facets shown on a textured gray surface; "Earth's Treasury" logo and text visible at the bottom.

    1.32-Carat Medium Blue Montana Sapphire (Heated)

    $2,600.00

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  • A yellow Montana sapphire in a custom rectangle design

    1.02-Carat Pale Yellow Montana Sapphire

    $1,500.00

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  • A 1.43-carat rich blue heated Montana Sapphire with intricate facets rests on a textured gray surface; "Earth's Treasury" appears below the gemstone.

    1.43-Carat Rich Blue Montana Sapphire (Heated)

    $2,900.00

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  • A blue Montana sapphire in an Old European-style cut (OEC)

    0.94-Carat Medium Blue Montana Sapphire (Heated)

    $940.00

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  • A particolored Montana sapphire in a classic diamond round brilliant design

    0.81-Carat Pale Aqua-Mint Particolored Montana Sapphire

    $675.00

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  • A white Montana sapphire in a classic diamond round brilliant design

    0.83-Carat Near Colorless Montana Sapphire

    $675.00

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  • A purple Montana sapphire in a classic diamond round brilliant design

    0.81-Carat Violet-Blue Montana Sapphire (Heated)

    $800.00

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    Add to cartDone
  • A round, faceted 1.03-carat heated Montana sapphire with a blue hue rests on a textured metallic surface, with "EARTH'S TREASURY" displayed below.

    1.03-Carat Medium Blue Montana Sapphire (Heated)

    $1,800.00

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  • A yellow Montana sapphire in a classic diamond round brilliant design

    1.16-Carat Orange-Blue Particolored Montana Sapphire (Heated)

    $1,700.00

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  • A 1.24-Carat Peacock Blue Montana Sapphire (Heated) shines in vivid blue on a textured metallic background, with the text "Earth's Treasury" beneath.

    1.24-Carat Peacock Blue Montana Sapphire (Heated)

    $2,000.00

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  • A blue Montana sapphire in a classic diamond round brilliant design

    1.01-Carat Medium Blue Montana Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • 0.89-Carat Light Yellow Montana Sapphire (Heated)

    0.89-Carat Light Yellow Montana Sapphire (Heated)

    $700.00

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    Add to cartDone
  • A purple Montana sapphire in our "Helena" oval design

    1.05-Carat Violetish Blue Montana Sapphire (Heated)

    $1,500.00

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    Add to cartDone
  • A 1.01-carat light aqua blue Montana sapphire, round-cut and radiant, rests on a textured gray surface with "EARTH'S TREASURY" written below.

    1.01-Carat Light Aqua Blue Montana Sapphire

    $2,000.00

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  • 1.26-Carat Bright Yellow Montana Sapphire

    1.26-Carat Bright Yellow Montana Sapphire

    $1,260.00

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  • 0.88-Carat Pale Aqua-Gray Montana Sapphire

    0.88-Carat Pale Aqua-Gray Montana Sapphire

    $850.00

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  • A particolored Montana sapphire in a classic diamond round brilliant design

    1.05-Carat Blue-Yellow Parti-Colored Montana Sapphire (Heated)

    $1,300.00

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  • A 1.36-carat greenish-yellow Montana Sapphire (heated) is shown on a textured surface, radiating brilliance above the Earth’s Treasury logo and name at the bottom.

    1.36-Carat Greenish-Yellow Montana Sapphire (Heated)

    $2,000.00

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    Add to cartDone
  • 4.35-Carat Greenish Yellow California Tourmaline

    4.35-Carat Greenish Yellow California Tourmaline

    $1,300.00

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  • A faceted yellow ET1445 gemstone rests on a textured gray surface, with the words "Earth's Treasury" displayed at the bottom.

    1.17-Carat Bright Yellow California Tourmaline

    $235.00

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  • 2.80-Carat Greenish Yellow California Tourmaline

    2.80-Carat Greenish Yellow California Tourmaline

    $840.00

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  • 3.28-Carat Bright Lime Green California Tourmaline

    3.28-Carat Bright Lime Green California Tourmaline

    $985.00

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    Add to cartDone
  • 1.06-Carat Medium Blue Montana Sapphire

    1.06-Carat Medium Blue Montana Sapphire

    $2,350.00

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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.