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  • A 0.71-carat color-change garnet, round and faceted, rests on a textured, light surface with "EARTH'S TREASURY" displayed below.

    0.71-Carat Deep Steely Blue to Purple Color Change Garnet

    $600.00

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  • A faceted blue 0.82-carat Montana sapphire (heated) displayed on a textured surface with "Earth's Treasury" below.

    0.82-Carat Blue-Lavender Particolored Montana Sapphire (Heated)

    $850.00

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  • A 0.68-carat rectangular-cut blue Montana sapphire placed on a textured surface, with the text "Earth's Treasury" beneath it.

    0.68-Carat Sky Blue Montana Sapphire (Heated)

    $680.00

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  • 0.91-Carat Orange Montana Sapphire (Heated)

    0.91-Carat Orange Montana Sapphire (Heated)

    $680.00

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  • A sky blue Montana sapphire in our "Stella" square cushion design

    0.81-Carat Sky Blue Montana Sapphire (Heated)

    $800.00

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  • 0.93-Carat Pale Aqua Blue Montana Sapphire (Heated)

    0.93-Carat Pale Aqua Blue Montana Sapphire (Heated)

    $950.00

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  • A bright green 0.42-carat Colombian emerald, treated for enhanced beauty, rests on a textured gray surface with the label "Earth's Treasury" below.

    0.42-Carat Bright Green Colombian Emerald (Oiled)

    $125.00

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  • 0.74-Carat Golden Yellow Montana Sapphire (Heated)

    0.74-Carat Golden Yellow Montana Sapphire (Heated)

    $600.00

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  • 0.69-Carat Light Violet Umba Sapphire

    0.69-Carat Light Violet Umba Sapphire

    $400.00

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  • 0.89-Carat Medium Blue Montana Sapphire

    0.89-Carat Medium Blue Montana Sapphire

    $1,100.00

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  • 0.90-Carat Light Blue Montana Sapphire

    0.90-Carat Light Blue Montana Sapphire

    $1,250.00

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  • 0.67-Carat Colorless Montana Sapphire

    0.67-Carat Colorless Montana Sapphire

    $675.00

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  • 0.87-Carat Medium Blue Montana Sapphire (Heated)

    0.87-Carat Medium Blue Montana Sapphire (Heated)

    $650.00

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  • 0.88-Carat Teal Blue Montana Sapphire (Heated)

    0.88-Carat Teal Blue Montana Sapphire (Heated)

    $850.00

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  • 1.00-Carat Rich Blue Montana Sapphire (Heated)

    1.00-Carat Rich Blue Montana Sapphire (Heated)

    $1,800.00

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  • 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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  • 0.90-Carat Medium Blue Montana Sapphire (Heated)

    0.90-Carat Medium Blue Montana Sapphire (Heated)

    $1,100.00

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

    0.79-Carat Sky Blue Umba Sapphire

    $700.00

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

    0.79-Carat Medium Blue Montana Sapphire (Heated)

    $790.00

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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 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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    Add to cartDone
  • 1.06-Carat Aqua Green Montana Sapphire

    1.06-Carat Aqua Green Montana Sapphire

    $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.