Rock Creek, Montana

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  • A 1.79-carat rich blue Montana Sapphire (heated) in round brilliant cut rests on a textured, light surface with the "Earth's Treasury" logo below.

    1.79-Carat Rich Blue Montana Sapphire (Heated)

    $3,100.00

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  • A 1.82-carat medium blue heated Montana Sapphire is showcased on a textured gray surface with "EARTH'S TREASURY" displayed at the bottom.

    1.82-Carat Medium Blue Montana Sapphire (Heated)

    $3,600.00

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  • A 0.90-carat heated Montana sapphire, square-cut and blue, displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    0.90-Carat Aqua Blue Montana Sapphire (Heated)

    $1,100.00

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

    0.94-Carat Medium Blue Montana Sapphire (Heated)

    $750.00

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

    0.84-Carat Medium Blue Montana Sapphire (Heated)

    $760.00

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

    0.93-Carat Rich Blue Montana Sapphire (Heated)

    $1,050.00

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

    0.93-Carat Medium Blue Montana Sapphire (Heated)

    $1,050.00

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

    0.93-Carat Medium Blue Montana Sapphire (Heated)

    $930.00

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

    0.93-Carat Aqua Blue Montana Sapphire (Heated)

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

    0.94-Carat Medium Blue Montana Sapphire (Heated)

    $1,200.00

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

    0.96-Carat Rich Blue Montana Sapphire (Heated)

    $1,200.00

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

    0.96-Carat Peacock Blue Montana Sapphire (Heated)

    $1,250.00

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

    1.04-Carat Rich Blue Montana Sapphire (Heated)

    $1,500.00

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

    0.81-Carat Opalescent Pale Aqua Montana Sapphire

    $675.00

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

    0.82-Carat Near Colorless Montana Sapphire

    $675.00

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

    0.82-Carat Grayish Blue 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 blue Montana sapphire in a classic diamond round brilliant design

    0.87-Carat Aqua Blue Montana Sapphire

    $850.00

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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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  • 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 2.20-carat Peacock Blue-Yellow Particolored Heated Montana Sapphire is shown on a textured gray surface with the "Earth's Treasury" logo and text below it.

    2.20-Carat Peacock Blue-Yellow Particolored Montana Sapphire (Heated)

    $4,400.00

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  • 1.53-Carat Rich Sky Blue Montana Sapphire (Heated)

    1.53-Carat Rich Sky Blue Montana Sapphire (Heated)

    $2,700.00

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  • A 1.54-Carat Midnight Blue-Green Montana Sapphire (Heated) with a geometric cut rests on a textured gray surface, with "Earth's Treasury" below the gem.

    1.54-Carat Midnight Blue-Green Montana Sapphire (Heated)

    $2,300.00

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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.