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  • A 3.51-carat cushion-cut blue-green sapphire rests on a textured gray surface with "Earth's Treasury" displayed beneath it.

    3.51-Carat Teal Madagascar Sapphire (Heated)

    $7,100.00

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  • A 3.91-carat Tanga Garnet, round and faceted, is displayed on a textured gray surface with the "Earth's Treasury" logo below.

    3.91-Carat Raspberry Pink Garnet

    $2,350.00

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  • A 3.42-carat, faceted oval Andalusite with yellow and brown hues rests on a textured gray surface. The "EARTH'S TREASURY" logo appears at the bottom.

    3.42-Carat Particolored Andalusite

    $700.00

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  • A 5.54-carat unheated tanzanite (zoisite) with geometric facets rests on a textured light gray surface; the "EARTH'S TREASURY" logo appears at the bottom.

    5.54-Carat Violet-Blue Unheated Tanzanite (Zoisite)

    $3,400.00

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  • A 2.67-carat cushion-cut spinel gemstone in shades of purple and gray, displayed on a textured surface with "Earth's Treasury" written below.

    2.67-Carat Mauve Purple Spinel

    $4,700.00

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  • A 2.83-carat Montana Sapphire (heated), round and dark blue with visible facets, set against a textured gray surface.

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

    $5,100.00

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  • A 2.14-carat Robin's Egg Blue Montana Sapphire (heated) is centered on a textured gray surface. The gem exhibits a vivid sparkle and intricate cuts, showcasing various shades of blue. Below the gemstone, "Earth's Treasury" is printed in black text.

    4.14-Carat Aqua Blue Montana Sapphire (Heated)

    $16,600.00

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  • 3.63-Carat Rich Teal Montana Sapphire (Heated)

    3.63-Carat Rich Teal Montana Sapphire (Heated)

    $14,500.00

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  • A 2.91-carat pale pink Montana sapphire, featuring a round faceted design and a light, translucent appearance, rests on a textured gray surface.

    2.91-Carat Near Colorless Montana Sapphire

    $7,300.00

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  • 3.73-Carat Rich Pink California Tourmaline

    3.73-Carat Rich Pink California Tourmaline

    $1,300.00

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  • 3.11-Carat Bright Pink California Tourmaline

    3.11-Carat Bright Pink California Tourmaline

    $935.00

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  • 3.25-Carat Greenish Gold California Tourmaline

    3.25-Carat Greenish Gold California Tourmaline

    $975.00

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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.