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  • 1.36-carat heated Montana sapphire in a round brilliant cut displayed on a textured gray surface, with "Earth's Treasury" at the bottom.

    1.36-Carat Steely Blue to Purple Color Change Montana Sapphire (Heated)

    $2,300.00

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  • A faceted, vivid blue 40.58-carat Tanzanite gemstone with geometric cuts rests on a textured surface, labeled "EARTH'S TREASURY" at the bottom.

    40.58-Carat Vivid Bluish Violet Tanzanite

    $32,500.00

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  • A 1.10-carat heated Montana sapphire rests on a textured gray surface, with "Earth's Treasury" visible at the bottom.

    1.10-Carat Medium Blue Montana Sapphire (Heated)

    $1,800.00

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  • A faceted 1.18-carat heated Montana sapphire with a radiating pattern rests on a textured gray surface. The "EARTH'S TREASURY" logo appears at the bottom.

    1.18-Carat Steely Blue to Purple Color Change Montana Sapphire (Heated)

    $2,300.00

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  • A 1.36-carat heated Montana Sapphire rests on a textured metallic surface, with "Earth's Treasury" and the logo visible at the bottom.

    1.36-Carat Rich-Medium Blue Particolored Montana Sapphire (Heated)

    $2,750.00

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  • A faceted blue 1.14 Carat Montana Sapphire (Heated) rests on a textured gray surface, with "EARTH'S TREASURY" and a hexagon logo at the bottom.

    1.14-Carat Rich Blue Montana Sapphire (Heated)

    $1,800.00

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  • A 1.21-carat heated Montana sapphire with a round brilliant cut is showcased on a textured gray surface, with "Earth's Treasury" displayed at the bottom.

    1.21-Carat Medium Blue Montana Sapphire (Heated)

    $2,150.00

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  • A 1.23-carat heated Montana sapphire, oval-shaped and blue, rests on a textured metallic surface with the "Earth's Treasury" logo at the bottom.

    1.23-Carat Deep Blue Montana Sapphire (Heated)

    $1,800.00

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  • A 1.29-carat heated Montana sapphire with intricate facets is displayed on a textured gray surface. The words "EARTH'S TREASURY" appear at the bottom.

    1.29-Carat Rich Blue Montana Sapphire (Heated)

    $2,500.00

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  • A 1.23-carat cushion-cut Montana sapphire (heated) displayed on a textured gray surface, with the text "EARTH'S TREASURY" below.

    1.23-Carat Light Sky Blue Montana Sapphire (Heated)

    $1,850.00

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  • A 0.90-carat rectangular, faceted Montana sapphire (heated) is displayed on a textured gray surface with "Earth's Treasury" at the bottom.

    0.90-Carat Blue-Gray Particolored Montana Sapphire (Heated)

    $1,150.00

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  • Montana Sapphire Diamond Halo Earrings (Rich Blue, 5.0 mm, Heated) with round sapphires encircled by sparkling diamonds, displayed on a textured surface featuring the "Earth's Treasury" logo.Montana Sapphire Diamond Halo Earrings (Rich Blue, 5.0 mm, Heated) with round sapphires encircled by sparkling diamonds, displayed on a textured surface featuring the "Earth's Treasury" logo.

    Montana Sapphire Diamond Halo Earrings, Rich Blue 5.0 mm (Heated)

    $2,600.00

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  • A pair of Montana Sapphire Earrings—medium blue, 5.25mm (heated), set in silver—displayed on a blue-green stone with the Earth’s Treasury logo below.A pair of Montana Sapphire Earrings—medium blue, 5.25mm (heated), set in silver—displayed on a blue-green stone with the Earth’s Treasury logo below.

    Montana Sapphire Earrings- Medium Blue, 5.25mm (Heated)

    $2,100.00

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  • A pair of Montana Sapphire Earrings—rich blue, 6.4mm (heated)—in silver settings displayed on a textured surface, with one earring resting on a rough blue stone.A pair of Montana Sapphire Earrings—rich blue, 6.4mm (heated)—in silver settings displayed on a textured surface, with one earring resting on a rough blue stone.

    Montana Sapphire Earrings- Rich Blue, 6.4mm (Heated)

    $6,500.00

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  • A 0.81-carat heated Montana sapphire with a rich blue hue rests on a textured light gray surface, featuring the "EARTH'S TREASURY" text and a hexagon logo at the bottom.

    0.81-Carat Medium Blue Montana Sapphire (Heated)

    $850.00

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  • A 0.94-carat heated Montana sapphire shines on a textured gray surface, with "Earth's Treasury" displayed at the bottom.

    0.94-Carat Rich Blue-Teal Particolored Montana Sapphire (Heated)

    $1,200.00

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  • A 1.21-carat heated Montana sapphire in a round brilliant cut is displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.21-Carat Sky Blue Montana Sapphire (Heated)

    $1,950.00

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  • 1.24-Carat Montana Sapphire (Heated) with a faceted blue starburst pattern, displayed on a textured light gray surface, features the "Earth's Treasury" logo at the bottom.

    1.24-Carat Blue-Aqua Particolored Montana Sapphire (Heated)

    $2,200.00

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  • A 1.15-carat heated Montana Sapphire, round brilliant-cut and blue, is displayed on a metallic textured surface with the text "EARTH'S TREASURY" below.

    1.15-Carat Medium Blue Montana Sapphire (Heated)

    $2,000.00

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  • A 1.21-carat heated Montana sapphire in round brilliant cut, shown on a textured light gray surface with the "Earth's Treasury" logo and text below.

    1.21-Carat Medium Blue Montana Sapphire (Heated)

    $2,300.00

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  • A 1.34-carat heated Montana sapphire with a brilliant round cut sits on a textured gray surface, the "Earth's Treasury" logo displayed at the bottom.

    1.34-Carat Medium Blue Montana Sapphire (Heated)

    $1,600.00

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  • A 1.35-carat heated Montana sapphire with a round brilliant cut rests on a textured light gray surface, with "EARTH'S TREASURY" displayed below.

    1.35-Carat Rich Blue Montana Sapphire (Heated)

    $2,500.00

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  • A 1.48-carat heated Montana sapphire with a round brilliant cut is displayed on a textured, metallic surface. "EARTH'S TREASURY" appears at the bottom of the image.

    1.48-Carat Medium Blue Montana Sapphire (Heated)

    $2,500.00

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    Add to cartDone
  • A 1.57-carat heated Montana Sapphire in a round brilliant cut is displayed on a light textured surface with the text "Earth's Treasury" below it.

    1.57-Carat Medium Blue Montana Sapphire (Heated)

    $2,700.00

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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.