1.58

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  • A 1.58-carat Montana sapphire is displayed on a textured gray surface, with "EARTH'S TREASURY" and a geometric logo visible at the bottom.

    1.58-Carat Near Colorless Montana Sapphire

    $2,800.00

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  • A 1.58-carat Ceylon sapphire in an oval cut rests on a textured grey surface with "Earth's Treasury" beneath it.

    1.58-Carat Sky Light Blue Ceylon Sapphire

    $2,900.00

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  • A 1.58-carat Spessartine Garnet with sharp facets and vivid orange color rests on a textured gray surface, with "Earth's Treasury" displayed below.

    1.58-Carat Orange Spessartine Garnet

    $1,200.00

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  • A 1.58-carat cushion-cut heated Montana sapphire with geometric facets is displayed on a textured gray surface, with the "EARTH'S TREASURY" logo and text below.

    1.58-Carat Sky Blue Montana Sapphire (Heated)

    $2,700.00

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  • A faceted 1.58-carat heated Montana sapphire rests on a textured gray surface; the "EARTH'S TREASURY" logo and text appear at the bottom.

    1.58-Carat Sky-Teal Particolored Montana Sapphire (Heated)

    $2,700.00

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  • A 1.58-carat Mahenge Garnet, with a faceted deep pink hue, sits atop a textured gray surface displaying "EARTH'S TREASURY" at the bottom.

    1.58-Carat Rich Magenta Pink Mahenge Garnet

    $950.00

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  • A faceted, trillion-cut 1.58-carat heated Montana sapphire in blue-green rests on a textured gray surface. "EARTH'S TREASURY" appears at the bottom.

    1.58-Carat Deep Blue-Green Montana Sapphire (Heated)

    $2,700.00

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  • A round, faceted 1.58-carat Montana Sapphire (Heated) is displayed on a textured metallic surface with "EARTH'S TREASURY" at the bottom.

    1.58-Carat Peacock Blue Montana Sapphire (Heated)

    $2,700.00

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  • A 1.58-carat, faceted pear-shaped Australian sapphire (heated), resting on a textured gray surface.

    1.58-Carat Lime Green Australian Sapphire (Heated)

    $3,150.00

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  • 1.58-Carat Midnight Blue-Green Australian Sapphire (Heated)

    1.58-Carat Midnight Blue-Green Australian Sapphire (Heated)

    $1,600.00

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  • 1.58-Carat Pale Yellow Sapphire

    1.58-Carat Pale Yellow Sapphire

    $2,300.00

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  • 1.58-Carat Violet Purple Ceylon Sapphire

    1.58-Carat Violet Purple Ceylon Sapphire

    $3,200.00

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  • 1.58-Carat Dusky Magenta Pink Umba Sapphire

    1.58-Carat Dusky Magenta Pink Umba Sapphire

    $1,400.00

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  • A rectangular pink gemstone with brilliant facets placed on a textured grey surface. Text at the bottom reads "ET1625 Earth's Treasury.

    1.58-Carat Light Pink Tourmaline

    $590.00

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  • A 1.58-carat oval-cut Peacock Blue Montana Sapphire (heated) with multiple facets is displayed on a textured gray surface, featuring the text "EARTH'S TREASURY" at the bottom.

    1.58-Carat Peacock Blue Montana Sapphire (Heated)

    $2,700.00

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    Add to cartDone
  • A 1.58-carat near colorless Montana Sapphire with visible inclusions, oval-cut, rests on a textured surface. The Earth's Treasury logo appears below.

    1.58-Carat Near Colorless Montana Sapphire

    $2,000.00

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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.