Rectangle Cushion

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  • A 1.79-carat teal blue Montana sapphire, featuring a radiant cut style, is displayed against a textured background. The gemstone showcases deep blue and green hues with geometric facets. The text "EARTH'S TREASURY" is visible along the bottom edge of the image.

    1.14-Carat Peacock-Aqua Particolored Montana Sapphire (Heated)

    $2,000.00

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  • A stunning 1.79-carat teal blue Montana sapphire with a radiant star-like pattern is showcased on a textured surface against a neutral background. The text at the bottom reads "EARTH'S TREASURY".

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

    $5,600.00

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  • A dazzling, rectangular cushion-cut 1.79-carat Teal Blue Montana Sapphire (Heated) with intricate facets, displayed on a textured gray surface. The gem showcases a vibrant teal blue color with a radiant internal sparkle. Below the gem, the text "EARTH'S TREASURY" is visible.

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

    $1,700.00

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  • A vibrant 1.79-carat teal blue Montana sapphire (heated) with a rectangular shape and intricate internal facets is displayed on a textured gray surface. The gemstone exhibits a blend of deep and light blue hues, and "Earth's Treasury" is written at the bottom of the image.

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

    $1,700.00

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  • A 1.79-carat teal blue Montana sapphire, featuring a rectangular cut with facets that reflect various shades of blue, is set against a textured beige background. At the bottom, the text reads "EARTH'S TREASURY" alongside a small geometric logo.

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

    $6,750.00

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  • 0.96-Carat Peacock Blue Madagascar Sapphire

    0.96-Carat Peacock Blue Madagascar Sapphire

    $1,200.00

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  • 1.73-Carat Violet Purple Ceylon Sapphire

    1.73-Carat Violet Purple Ceylon Sapphire

    $4,500.00

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  • 1.63-Carat Medium Blue Ceylon Sapphire

    1.63-Carat Medium Blue Ceylon Sapphire

    $4,200.00

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  • 1.89-Carat Sky Blue Ceylon Sapphire

    1.89-Carat Sky Blue Ceylon Sapphire

    $4,500.00

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  • 1.76-Carat Rich Blue-Teal Particolored Montana Sapphire (Heated)

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

    $3,350.00

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  • The "Lillium" ring in 14k yellow gold, featuring a 1.38-carat Australian sapphire and two light blue stones, is shown on a green leaf background with the "Earth's Treasury" logo below.The "Lillium" ring in 14k yellow gold with a 1.38-carat Australian sapphire, accented by two clear stones and shown on a rough blue crystal, with the Earth's Treasury logo beneath.

    The “Lilium” Ring

    $2,600.00

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  • 1.00-Carat Blue-Teal Particolored Montana Sapphire (Heated)

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

    $1,750.00

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  • 1.17-Carat Teal Blue Montana Sapphire (Heated)

    1.17-Carat Teal Blue Montana Sapphire (Heated)

    $1,200.00

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  • 1.31-Carat Blue-Teal Particolored Montana Sapphire (Heated)

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

    $1,600.00

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  • 1.18-Carat Medium Blue Montana Sapphire (Heated)

    1.18-Carat Medium Blue Montana Sapphire (Heated)

    $1,250.00

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  • 1.43-Carat Medium Blue Montana Sapphire (Heated)

    1.43-Carat Medium Blue Montana Sapphire (Heated)

    $1,700.00

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  • 1.65-Carat Violet-Lavender Particolored Ceylon Sapphire (Heated)

    1.65-Carat Violet-Lavender Particolored Ceylon Sapphire (Heated)

    $3,100.00

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  • 1.07-Carat Sky Blue Ceylon Sapphire

    1.07-Carat Sky Blue Ceylon Sapphire

    $1,800.00

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  • 1.50-Carat Sky Blue Ceylon Sapphire

    1.50-Carat Sky Blue Ceylon Sapphire

    $3,500.00

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  • 1.92-Carat Deep Blue-Green Australian Sapphire (Heated)

    1.92-Carat Deep Blue-Green Australian Sapphire (Heated)

    $3,700.00

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  • 1.78-Carat Near Black Australian Sapphire (Heated)

    1.78-Carat Near Black Australian Sapphire (Heated)

    $1,900.00

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  • A 2.14-carat Robin's Egg Blue Montana Sapphire with a cushion cut shape is displayed on a textured surface. The clarity and facets of the gem are highlighted by the lighting. At the bottom of the image, the text reads "EARTH'S TREASURY" with a small geometric logo.

    1.24-Carat Pale Blue Sapphire

    $1,900.00

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  • A radiant 2.14-carat Robin's Egg Blue Montana Sapphire, cushion-cut and heated, is showcased against a gray textured background. The bottom center of the image includes the text "EARTH'S TREASURY" with a hexagonal logo between the words.

    1.41-Carat Rich Blue Ceylon Sapphire (Heated)

    $3,100.00

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  • A close-up image of a faceted 2.14-carat Robin's Egg Blue Montana sapphire gemstone resting against a textured grey background. The complex, symmetrical cuts of the gem create a sparkling effect. At the bottom center, the logo and text "EARTH'S TREASURY" is visible.

    1.68-Carat Rich Teal-Yellow Particolored Montana Sapphire (Heated)

    $3,200.00

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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.