Rectangle Cushion

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  • The "Aralia" ring in platinum, featuring a 1.03-carat Montana sapphire and leaf details, is shown on a green plant stem with the Earth’s Treasury logo below.The "Aralia" ring in platinum with a 1.03-carat Montana sapphire stands upright, displaying its band and setting, with a rough blue stone behind it on a patterned surface. The Earth's Treasury logo appears below.

    The “Aralia” Ring

    $2,150.00

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  • The Deluxe "Ivey" ring in 14k yellow gold with a 1.58-carat Australian sapphire, featuring an intricate leaf and vine design, is displayed on a green plant stem. Below it appears the text "EARTH'S TREASURY.The Deluxe "Ivey" ring in 14k yellow gold with a 1.58-carat Australian sapphire stands upright against a blue textured surface, displayed before a geometric patterned background with the Earth's Treasury logo below.

    The Deluxe “Ivey” Ring

    $2,100.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • A rectangular, pale yellow-green 1.02-carat heated Montana sapphire rests on a textured gray surface, with "EARTH'S TREASURY" below.

    1.02-Carat Pale Yellow-Green Montana Sapphire (Heated)

    $1,800.00

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  • A 1.08-carat heated Montana sapphire, cut in a blue rectangular shape with intricate facets, is displayed on a light textured surface. The "Earth’s Treasury" logo is shown at the bottom.

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

    $1,900.00

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  • A 1.05-carat heated Montana sapphire with a radiant cut and blue-green hue is displayed on a textured light gray surface, with "EARTH'S TREASURY" below.

    1.05-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $1,850.00

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  • A rectangular, faceted blue 1.07-carat heated Montana sapphire rests on a textured light surface with "EARTH’S TREASURY" below it.

    1.07-Carat Teal Blue Montana Sapphire (Heated)

    $1,600.00

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  • A 1.21-carat heated Montana sapphire, cut in a rectangular blue-green facet, is displayed on a gray textured surface featuring the "Earth's Treasury" logo at the bottom.

    1.21-Carat Teal Montana Sapphire (Heated)

    $2,150.00

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  • A 1.42-carat heated Montana sapphire with multiple facets is shown on a light grey textured surface. The text "EARTH'S TREASURY" appears at the bottom of the image.

    1.42-Carat Teal Blue Montana Sapphire (Heated)

    $1,700.00

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  • A 1.67-carat heated Montana sapphire with a rectangular cushion cut rests on a textured gray surface displaying the "Earth's Treasury" logo.

    1.67-Carat Deep Peacock Blue Montana Sapphire (Heated)

    $3,800.00

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  • A 1.50-carat faceted Ceylon Sapphire rests on a textured surface, with the "EARTH'S TREASURY" logo displayed at the bottom of the image.

    1.50-Carat Light Cornflower Blue Ceylon Sapphire

    $2,100.00

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  • A 3.13-carat Ceylon sapphire, cushion-cut in a rectangular shape, displayed on a textured surface with "EARTH'S TREASURY" shown below.

    3.13-Carat Light Cornflower Blue Ceylon Sapphire

    $11,800.00

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  • A 1.40-carat Ceylon Sapphire (Heated) is displayed on a light gray textured surface with "EARTH'S TREASURY" written below.

    1.40-Carat Rich Blue Ceylon Sapphire (Heated)

    $2,800.00

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  • A 1.28-carat, cushion-cut Ceylon Sapphire (heated) sparkles on a textured metallic surface featuring the "Earth's Treasury" logo and text at the bottom.

    1.28-Carat Hot Pink Ceylon Sapphire (Heated)

    $2,600.00

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  • A 1.54-carat heated Ceylon sapphire in cushion cut, showcased on a light textured surface with "EARTH'S TREASURY" at the bottom.

    1.54-Carat Lilac Pink Ceylon Sapphire (Heated)

    $2,100.00

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  • A 2.02-carat Ceylon sapphire in a rectangular cushion cut is shown on a textured gray surface with "EARTH'S TREASURY" displayed beneath.

    2.02-Carat Sky Blue Ceylon Sapphire

    $5,450.00

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  • A 2.92-carat Ceylon sapphire, faceted and rectangular, is displayed on a light textured surface with "EARTH'S TREASURY" and a hexagon logo visible at the bottom.

    2.92-Carat Rich Cornflower Blue Ceylon Sapphire

    $8,000.00

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  • A 1.84-carat Ceylon sapphire gemstone with a cushion cut is displayed on a textured gray surface with "EARTH'S TREASURY" written below.

    1.84-Carat Rich Violet-Blue Ceylon Sapphire

    $5,850.00

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  • A 2.08-carat Ceylon sapphire with a cushion cut sits on a textured surface, with the "Earth’s Treasury" logo displayed at the bottom.

    2.08-Carat Rich Violet-Blue to Purple Color-Change Ceylon Sapphire

    $6,200.00

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  • A 2.21-carat Ceylon sapphire with a cushion cut is displayed on a textured surface, with the text "EARTH'S TREASURY" shown below.

    2.21-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $6,650.00

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  • A 1.24-carat cushion-cut Ceylon sapphire rests on a textured gray surface with "Earth's Treasury" displayed at the bottom.

    1.24-Carat Light Cornflower Blue Ceylon Sapphire

    $1,850.00

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  • A 1.43-carat cushion-cut Ceylon Sapphire is displayed on a light-colored textured surface with the "Earth's Treasury" logo beneath it.

    1.43-Carat Cornflower Blue Ceylon Sapphire

    $2,800.00

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  • A 2.32-carat Montana sapphire with a rectangular, faceted lavender cut rests on a textured metallic surface featuring the Earth's Treasury logo at the bottom center.

    2.32-Carat Lavender Purple Montana Sapphire

    $4,400.00

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  • A 4.62-carat Ceylon sapphire with a cushion cut rests on a metallic textured surface, with the text "Earth's Treasury" displayed at the bottom of the image.

    4.63-Carat Light Cornflower Blue Ceylon Sapphire

    $16,000.00

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  • A 1.62-carat cushion-cut Ceylon Sapphire with intricate facets rests on a textured, light surface. The Earth's Treasury logo is shown below.

    1.62-Carat Sky Blue Ceylon Sapphire

    $4,600.00

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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.