Rectangle Cushion

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  • A 2.67-carat Ceylon Sapphire with internal patterns rests on a textured surface, with "Earth's Treasury" below.

    2.67-Carat Light Violet-Blue Ceylon Sapphire

    $8,000.00

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  • A 1.60-carat Ceylon blue sapphire, cushion-cut, is displayed on a textured surface with the "Earth's Treasury" logo beneath.

    1.60-Carat Sky Blue Ceylon Sapphire

    $3,200.00

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  • A 2.66-carat Ceylon sapphire, cushion-cut and blue, is displayed on a textured metallic surface with the "Earth's Treasury" logo visible at the bottom.

    2.66-Carat Light Violet Purple Ceylon Sapphire

    $6,900.00

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  • A 1.52-carat Ceylon Sapphire in a cushion cut rests on a textured surface.

    1.52-Carat Light Cornflower Blue Ceylon Sapphire

    $3,850.00

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  • A 1.32-carat Ceylon sapphire, heated and geometric cut, rests on a textured gray surface with "Earth's Treasury" displayed at the bottom.

    1.32-Carat Royal Blue Ceylon Sapphire (Heated)

    $3,100.00

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  • A stunning 1.45-carat Ceylon sapphire, cushion-cut to perfection, rests elegantly on a textured surface.

    1.45-Carat Violet Purple Ceylon Sapphire

    $3,300.00

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  • A 1.68-carat Ceylon sapphire (heated) in a cushion cut is set on a textured surface, displaying the "Earth's Treasury" logo beneath it.

    1.68-Carat Medium Blue Ceylon Sapphire (Heated)

    $3,750.00

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  • A 1.28-carat Ceylon Sapphire, cushion-cut and reflecting light beautifully, rests on a textured surface. Below, the text reads "Earth's Treasury.

    1.28-Carat Sky Blue Ceylon Sapphire

    $2,550.00

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  • The 1.35-Carat Ceylon Sapphire, cushion-cut and displayed on a textured surface, with "Earth's Treasury" below.

    1.35-Carat Medium Blue Ceylon Sapphire

    $3,100.00

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  • A 1.45-carat Ceylon Sapphire with a cushion cut, light blue hue rests on a textured gray surface.

    1.45-Carat Sky Blue Ceylon Sapphire

    $3,300.00

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  • A 2.01-carat rectangular cut sapphire with a blue hue is shown on a textured surface, with the "Earth's Treasury" logo at the bottom.

    2.01-Carat Medium Blue Montana Sapphire (Heated)

    $6,600.00

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  • The "Celosia" ring in 14k yellow gold, featuring a 1.86-carat Montana sapphire center and accented by smaller clear stones, is displayed on a green leaf against a metallic backdrop.Gold ring named "Celosia" in 14k yellow gold with a 1.86-carat Montana sapphire, displayed on a textured surface background. The name "Earth's Treasury" appears at the bottom.

    The “Celosia” Seven-Stone Ring

    $2,750.00

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  • The "Concordia" ring in 14k yellow gold features a 0.94-carat Montana sapphire center, flanked by two round blue stones and two tapered clear stones, displayed vertically on a green stem with "Earth's Treasury" branding below.The "Concordia" ring in 14k yellow gold, featuring a 0.94-carat Montana sapphire, is displayed upright against a rough bluish stone with a textured gray background.

    The “Concordia” Five-Stone Ring

    $2,950.00

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  • The "Hera" ring in 18k yellow gold features a 2.88-carat rectangular emerald center stone and two trapezoid-cut side diamonds, displayed on a green striped surface.The "Hera" ring in 18k yellow gold with a 2.88-carat emerald is displayed upright, highlighting its side setting against a geometric background with the text "EARTH'S TREASURY" at the bottom.

    The “Hera” Three-Stone Ring

    $4,100.00

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  • The "Dinara" ring in 14K yellow gold features a 1.72-carat Australian sapphire and two clear side stones, displayed on a green leaf background with "Earth's Treasury" text at the bottom.The "Dinara" ring in 14K yellow gold, featuring a 1.72-carat Australian sapphire, stands upright on a textured stone background with the Earth’s Treasury logo at the bottom.

    The “Dinara” Three-Stone Ring

    $2,900.00

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  • The "Olympia" ring in 18k yellow gold features a 1.18-carat rectangular ruby flanked by two smaller clear gemstones, set on a green leaf surface.18k yellow gold "Olympia" ring featuring a 1.18-carat ruby and clear stones on a textured surface, labeled "Earth's Treasury.

    The “Olympia” Three-Stone Ring

    $3,300.00

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  • The "Kaelin" Ring in 14k yellow gold features a 1.00-carat round Ceylon sapphire center, flanked by two oval white stones, displayed on a green leaf background.The "Kaelin" Ring in 14k yellow gold with a 1.00-carat Ceylon sapphire is shown upright in a prong setting on a dark stone background, viewed from the side. The "Earth's Treasury" logo appears at the bottom.

    The “Kaelin” Three-Stone Ring

    $2,900.00

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  • The "Lobelia" ring in platinum features a 1.19-carat Montana sapphire at its center, accented by white marquise and pear-shaped stones, beautifully displayed on a green leaf.A close-up side view of the "Lobelia" ring in platinum with a 1.19-carat Montana sapphire, displayed upright against a rough blue-green stone, with the Earth's Treasury logo at the bottom.

    The “Lobelia” Cluster Ring

    $2,900.00

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  • The "Liana" ring in 18k yellow gold features a 1.50-carat round Australian sapphire at its center, accented by marquise and round white stones, shown resting on a green leaf.The "Liana" ring in 18k yellow gold with a 1.50-carat Australian sapphire stands upright on a rough blue stone, set against a geometric patterned background with "EARTH'S TREASURY" at the bottom.

    The “Liana” Cluster Ring

    $2,900.00

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  • The "Marilyn" ring in 18k yellow gold features a 3.20-carat cushion-cut Ceylon sapphire and diamond-accented band, displayed on a green leaf with Earth’s Treasury logo at the bottom.The "Marilyn" ring in 18k yellow gold features an intricate band and a 3.20-carat Ceylon sapphire in a four-prong setting, shown upright on a textured gray surface.

    The “Marilyn” Ring

    $2,450.00

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  • The "Graciella" ring in 14k white gold features a 1.27-carat hexagon Montana sapphire with a diamond halo and intertwining diamond band, shown on a green leaf.The "Graciella" ring in 14k white gold with a 1.27-carat Montana sapphire stands upright on a textured gray surface, with the "EARTH'S TREASURY" logo visible at the bottom.

    The “Graciella” Halo Ring

    $3,200.00

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  • The "Pallas" platinum ring with a 0.73-carat Montana sapphire and sparkling side stones is displayed on a green leaf, with the Earth's Treasury logo at the bottom.A platinum "Pallas" ring set with a 0.73-carat Montana sapphire stands upright against a rough blue stone on a textured gray surface, with the text "Earth's Treasury" below.

    The “Pallas” Ring

    $2,500.00

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  • The "Clary" ring features a 1.43-carat oval Montana sapphire set in 14k yellow gold, accented by two round white diamonds, and is elegantly displayed on a green leaf background.The "Clary" ring in 14k yellow gold, featuring a 1.43-carat Montana Sapphire in a prong setting, is displayed upright against a rough textured blue stone background.

    The “Clary” Three-Stone Ring

    $2,300.00

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  • The "Nymph" ring in 14K yellow gold features a 1.27-carat Montana sapphire flanked by two pear-shaped clear stones, beautifully presented on a green leaf background for an enchanting, nature-inspired look.The "Nymph" ring in 14K yellow gold features a 1.27-carat Montana sapphire accented by two pear-shaped clear stones, displayed on a rough blue crystal with the "Earth’s Treasury" logo—a striking three-stone ring for any occasion.

    The “Nymph” Three-Stone Ring

    $2,450.00

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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.