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  • A 1.36-carat heated teal blue Montana Sapphire is displayed on a textured gray surface, with "EARTH'S TREASURY" written below.

    1.36-Carat Teal Blue Montana Sapphire (Heated)

    $2,350.00

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  • A 1.93-carat rich blue Montana Sapphire (heated), round and faceted, is displayed on a textured gray surface with "EARTH'S TREASURY" and a hexagonal logo beneath the stone.

    1.93-Carat Rich Blue Montana Sapphire (Heated)

    $3,900.00

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    Add to cartDone
  • 1.24-Carat Orange-Yellow Particolored Montana Sapphire (Heated)

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

    $1,500.00

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    Add to cartDone
  • 1.35-Carat Rich Blue-Yellow Particolored Montana Sapphire (Heated)

    1.35-Carat Rich Blue-Yellow Particolored Montana Sapphire (Heated)

    $2,350.00

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

    0.92-Carat Rich Blue Montana Sapphire (Heated)

    $950.00

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

    1.00-Carat Light Yellow Montana Sapphire (Heated)

    $900.00

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

    1.23-Carat Teal Blue Montana Sapphire (Heated)

    $1,800.00

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    Add to cartDone
  • 1.25-Carat Light Sky Blue Montana Sapphire (Heated)

    1.25-Carat Light Sky Blue Montana Sapphire (Heated)

    $1,800.00

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

    1.29-Carat Blue-Teal Particolored Montana Sapphire (Heated)

    $1,300.00

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

    1.46-Carat Golden Yellow Montana Sapphire (Heated)

    $1,600.00

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

    0.72-Carat Golden Yellow Montana Sapphire (Heated)

    $700.00

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

    1.31-Carat Medium Blue Montana Sapphire (Heated)

    $1,500.00

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

    1.59-Carat Medium Blue Montana Sapphire (Heated)

    $3,200.00

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    Add to cartDone
  • A 1.67-carat medium blue heated Montana Sapphire is displayed on a textured surface with the Earth's Treasury logo and name at the bottom.

    1.67-Carat Medium Blue Montana Sapphire (Heated)

    $2,900.00

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    Add to cartDone
  • A 1.70-carat deep peacock blue Montana Sapphire (heated) rests on a textured metallic surface, with the "Earth's Treasury" text and logo displayed below.

    1.70-Carat Deep Peacock Blue Montana Sapphire (Heated)

    $2,900.00

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    Add to cartDone
  • A round, faceted 1.16-carat pale pink Montana Sapphire rests on a textured metallic surface, with the "Earth's Treasury" logo and text below.

    1.16-Carat Pale Pink Montana Sapphire

    $1,950.00

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    Add to cartDone
  • A 1.27-carat blue-aqua particolored Montana Sapphire with a round, geometric cut is displayed on a textured gray surface, featuring the text "Earth's Treasury" at the bottom.

    1.27-Carat Blue-Aqua Particolored Montana Sapphire

    $2,750.00

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    Add to cartDone
  • 2.33-Carat Lavender Nigerian Sapphire

    2.33-Carat Lavender Nigerian Sapphire

    $4,300.00

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    Add to cartDone
  • A 2.53-carat Violet-Blue Umba Sapphire, with intricate faceting, is placed against a textured light grey background, with the text "EARTH'S TREASURY" at the bottom center.

    2.53-Carat Bluish Violet Umba Sapphire

    $2,200.00

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    Add to cartDone
  • 1.14-Carat Yellow-Green Australian Sapphire (Heated)

    1.14-Carat Yellow-Green Australian Sapphire (Heated)

    $1,300.00

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    Add to cartDone
  • 1.28-Carat Yellow-Green Particolored Australian Sapphire (Heated)

    1.28-Carat Yellow-Green Particolored Australian Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • 1.04-Carat Lemon Yellow Australian Sapphire (Heated)

    1.04-Carat Lemon Yellow Australian Sapphire (Heated)

    $1,200.00

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    Add to cartDone
  • An 18k yellow gold "Cassandra" ring featuring a 1.79-carat Montana sapphire, encircled by clear diamonds, showcased on a green leaf with the "EARTH'S TREASURY" logo at the bottom.The "Cassandra" ring in 18k yellow gold with a 1.79-carat Montana sapphire is displayed upright on a dark rough stone atop a textured gray surface, with the "Earth's Treasury" logo and text at the bottom.

    The “Cassandra” Halo Ring

    $2,700.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • 1.34-Carat Midnight Blue-Green Australian Sapphire

    1.34-Carat Midnight Blue-Green Australian Sapphire

    $1,400.00

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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.