Rectangle Cushion

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  • The "Firenze" ring, expertly crafted in 18k yellow gold, features a 0.61-carat Montana sapphire center stone accented by two clear side stones. The ring is displayed on a rough blue-green mineral, with the "Earth's Treasury" text below.Presenting the "Firenze" ring in 18k yellow gold, showcasing a 0.61-carat Montana sapphire at its center and accented by two rectangular clear stones. Displayed elegantly atop a rough dark blue crystal, this striking piece is ready to ship.

    The “Firenze” Ring

    $4,950.00

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  • A 2.24-carat Ceylon sapphire, with a faceted light pink hue, rests on a textured metallic surface with "Earth's Treasury" displayed below.

    2.24-Carat Peach Ceylon Sapphire

    $4,600.00

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  • A 1.30-carat heated sapphire with a cushion cut is displayed on a textured metallic surface featuring the "Earth's Treasury" logo at the bottom.

    1.30-Carat Pink Ceylon Sapphire (Heated)

    $2,950.00

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  • A cushion-cut pink gemstone, product JM-001-398JM-G, rests on a textured gray surface with the "Earth's Treasury" logo below.

    2.01-Carat Padparadscha Ceylon Sapphire

    $8,500.00

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  • The “Daphne” Solitaire with 3.03-Carat Near Black Australian Sapphire (Heated)The “Daphne” Solitaire with 3.03-Carat Near Black Australian Sapphire (Heated)

    The “Daphne” Solitaire with 3.03-Carat Near Black Australian Sapphire (Heated)

    $3,450.00

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  • A 1.35-carat rectangular, pale yellow Montana sapphire is shown on a textured gray surface with the Earth's Treasury logo at the bottom.

    1.35-Carat Light Peach-Yellow Opalescent Montana Sapphire

    $1,900.00

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  • A 2.05-carat rich green Zambian emerald is displayed on a textured, patterned surface with the text "Earth's Treasury" below it.

    2.05-Carat Rich Green Zambian Emerald

    $8,200.00

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  • A 1.57-carat cushion-cut blue sapphire rests on a textured surface, with the Earth’s Treasury logo displayed at the bottom of the image.

    1.57-Carat Royal Blue Ceylon Sapphire (Heated)

    $3,800.00

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  • A 2.32-carat heated sapphire with a cushion cut rests on a textured metallic surface, with "Earth's Treasury" logo and text displayed beneath.

    2.32-Carat Blue-Green Particolored Madagascar Sapphire (Heated)

    $4,800.00

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  • A 2.34-carat heated sapphire with a cushion cut is displayed on a textured surface, with "Earth’s Treasury" written below.

    2.34-Carat Rich Blue Ceylon Sapphire (Heated)

    $9,900.00

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  • A 2.37-carat sky blue Ceylon sapphire (heated), faceted in a cushion cut, is displayed on a textured light surface with the "Earth's Treasury" logo at the bottom of the image.

    2.37-Carat Sky Blue Ceylon Sapphire (Heated)

    $5,700.00

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  • 2.40-carat cornflower blue Ceylon sapphire (heated) in a cushion cut, showcased on a textured surface with the "Earth's Treasury" logo at the bottom.

    2.40-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $7,250.00

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  • A 2.52-carat heated Ceylon sapphire with a cushion cut rests on a textured light gray surface, with the Earth's Treasury logo at the bottom.

    2.52-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $6,500.00

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  • A 2.60-carat heated sapphire, cushion-cut and blue, is displayed on a textured surface with "EARTH'S TREASURY" and a hexagonal logo beneath it.

    2.60-Carat Light Cornflower Blue Ceylon Sapphire (Heated)

    $5,800.00

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  • A 3.45-carat royal blue Ceylon sapphire (heated), expertly cut in a cushion shape, is displayed on a textured surface with the Earth’s Treasury logo visible at the bottom of the image.

    3.45-Carat Royal Blue Ceylon Sapphire (Heated)

    $13,900.00

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  • A 4.56-carat cornflower blue Ceylon sapphire (heated), cushion-cut, is displayed on a textured surface featuring the words "EARTH'S TREASURY" and a hexagonal logo at the bottom.

    4.56-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $21,800.00

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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 1.10-carat faceted green emerald gemstone rests on a textured gray surface, with the "Earth's Treasury" logo and text visible at the bottom.

    1.10-Carat Rich Green Zambian Emerald

    $5,500.00

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  • A cushion-cut, vivid pink 1.41-carat ruby (heated) rests on a textured metallic surface, with the "EARTH'S TREASURY" logo and text displayed at the bottom.

    1.41-Carat Vietnamese Ruby (Heated)

    $6,400.00

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  • A 1.32-carat unheated Ceylon sapphire with a cushion cut is displayed on a textured surface, with "Earth's Treasury" shown below.

    1.32-Carat Violet Blue Ceylon Sapphire (Unheated)

    $3,300.00

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  • A 0.98-carat heated Ceylon sapphire, cushion-cut and blue, rests on a textured gray surface featuring the "EARTH'S TREASURY" logo at the bottom.

    0.98-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $2,100.00

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  • A 3.01-carat heated Ceylon sapphire with a cushion cut is displayed on a textured surface, with “Earth’s Treasury” shown below the gem.

    3.01-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $11,600.00

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  • A 1.17-carat heated Ceylon sapphire with a cushion cut is displayed on a textured metallic surface, featuring the "EARTH'S TREASURY" logo and text at the bottom.

    1.17-Carat Deep Blue Ceylon Sapphire (Heated)

    $2,950.00

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  • A 3.96-carat heated Ceylon sapphire gemstone with a cushion cut is displayed on a textured surface, featuring the "Earth's Treasury" logo at the bottom.

    3.96-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $17,800.00

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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.