1.18

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  • A 1.18-carat, round-cut Montana Sapphire (heated) in a light blue hue is displayed on a textured surface, with the logo "Earth's Treasury" beneath it.

    1.18-Carat Sky Blue Montana Sapphire (Heated)

    $1,750.00

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    Add to cartDone
  • 1.18-Carat Teal Blue Montana Sapphire (Heated)

    1.18-Carat Teal Blue Montana Sapphire (Heated)

    $2,100.00

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    Add to cartDone
  • 1.18-Carat Medium Blue Montana Sapphire (Heated)

    1.18-Carat Medium Blue Montana Sapphire (Heated)

    $1,250.00

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    Add to cartDone
  • A 1.18-Carat Teal Blue Montana Sapphire (Heated) with an oval-faceted cut is showcased on a textured gray background with the Earth's Treasury logo at the bottom.

    1.18-Carat Teal Blue Montana Sapphire (Heated)

    $2,100.00

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    Add to cartDone
  • 1.18-Carat Colorless Montana Sapphire (Heated)

    1.18-Carat Colorless Montana Sapphire (Heated)

    $1,300.00

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    Add to cartDone
  • 1.18-Carat Teal Blue Montana Sapphire (Heated)

    1.18-Carat Teal Blue Montana Sapphire (Heated)

    $1,750.00

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    Add to cartDone
  • 1.18-Carat Golden Yellow Australian Sapphire (Heated)

    1.18-Carat Golden Yellow Australian Sapphire (Heated)

    $970.00

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    Add to cartDone
  • A blue Montana sapphire in our "Serendipity" oval design

    1.18-Carat Medium Blue Montana Sapphire (Heated)

    $1,600.00

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    Add to cartDone
  • A color-change Montana sapphire in our "Helena" oval design

    1.18-Carat Violet-Blue Montana Sapphire (Heated)

    $2,100.00

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    Add to cartDone
  • A blue Australian Sapphire in a classic diamond round brilliant design

    1.18-Carat Midnight Blue Australian Sapphire (Heated)

    $900.00

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    Add to cartDone
  • 1.18-Carat Light Violet-Gray Particolored Umba Sapphire

    1.18-Carat Light Violet-Gray Particolored Umba Sapphire

    $700.00

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

    1.18-Carat Aqua Blue Montana Sapphire (Heated)

    $1,750.00

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    Add to cartDone
  • A 1.18-Carat Light Violet Blue Montana Sapphire is showcased on a textured gray surface, featuring the "Earth's Treasury" logo at the bottom.

    1.18-Carat Light Violet-Blue Montana Sapphire

    $2,750.00

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    Add to cartDone
  • 1.18-Carat Violet-Blue Umba Sapphire

    1.18-Carat Violet-Blue Umba Sapphire

    $1,200.00

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

    1.18-Carat Peacock Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • The ET1443 gemstone, featuring a faceted cut, sits on a textured gray surface in a rectangular green form.

    1.18-Carat Greenish Yellow California Tourmaline

    $235.00

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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.