2.5 mm

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  • The “Astrea” Ring with 1.48-Carat Cornflower Blue Ceylon Sapphire (Heated)The “Astrea” Ring with 1.48-Carat Cornflower Blue Ceylon Sapphire (Heated)

    The “Astrea” Ring with 1.48-Carat Cornflower Blue Ceylon Sapphire (Heated)

    $5,700.00

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  • Straight “Astrea” Band Ready To WearStraight “Astrea” Band Ready To Wear

    Straight “Astrea” Band Ready To Wear

    $1,900.00

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  • The "Josephine" ring in 18K white gold, featuring a 1.60-carat Ceylon sapphire with a prong-set halo of diamonds, is displayed on a blue-green gemstone against a patterned gray background with the "Earth's Treasury" logo below.The "Josephine" ring in 18K white gold, featuring a 1.60-carat Ceylon sapphire with a prong-set halo of diamonds, is displayed on a blue-green gemstone against a patterned gray background with the "Earth's Treasury" logo below.

    The “Josephine” Halo Ring

    $3,100.00

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  • The "Mirabelle" ring in 18K yellow gold, featuring a 1.92-carat Ceylon sapphire surrounded by diamonds, rests on a green leaf. The text "EARTH'S TREASURY" appears below.The "Mirabelle" ring in 18K yellow gold with a 1.92-carat Ceylon sapphire is displayed upright on a textured dark stone, with the Earth's Treasury logo at the bottom.

    The “Mirabelle” Ring

    $2,600.00

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  • The "Senna" ring features a 2.20-carat round pink Umba sapphire set in 14k rose gold with a split diamond band, shown on a green striped leaf.The "Senna" ring in 14k rose gold, featuring a 2.20-carat rectangular Umba sapphire and small diamonds, is displayed upright on a rough gray stone with the Earth's Treasury logo below.

    The “Senna” Hidden Halo Ring

    $2,600.00

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  • A 2.28-carat Ceylon sapphire is set in the "Francoise" ring with white diamonds in 18k yellow gold, displayed on a green background. The "Earth's Treasury" logo appears at the bottom.The "Francoise" ring in 18k yellow gold with a 2.28-carat Ceylon sapphire stands upright on a blue-green raw gemstone, with "Earth's Treasury" branding below.

    The “Francoise” Halo Ring

    $3,200.00

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  • The "Angelica" ring in 14k white and yellow gold features a 2.30-carat Montana sapphire center surrounded by ten clear diamonds, displayed on a green-striped surface.The "Angelica" ring in 14k white and yellow gold, featuring a 2.30-carat Montana sapphire, is shown upright on a rough blue stone with the Earth's Treasury logo below.

    The “Angelica” Halo Ring

    $3,600.00

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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 "Marilyn" band in 18k yellow gold, featuring diamond accents and ornate detailing, is showcased on a dark textured mineral surface with a geometric metallic background.The "Marilyn" band in 18k yellow gold, featuring diamond accents and floral details, is shown encircling a rough blue gemstone on a gray textured surface.

    The “Marilyn” Band

    $2,100.00

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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 "Antoinette" ring features a 1.69-carat Australian yellow-green sapphire in 14k yellow gold with a split-shank setting, shown on a green leaf with "Earth's Treasury" branding below.The "Antoinette" ring in 14k yellow gold with a 1.69-carat Australian sapphire stands upright before a rough blue mineral, with small diamonds and a geometric metallic background. "Earth's Treasury" appears at the bottom.

    The “Antoinette” Ring

    $2,600.00

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  • The "Ramona" band in 14K rose gold rests on a rough blue stone atop a geometric silver background, with the “Earth's Treasury” logo displayed below.The "Ramona" band in 14K rose gold rests on a rough blue stone atop a geometric silver background, with the “Earth's Treasury” logo displayed below.

    The “Ramona” Band

    $2,200.00

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  • The "Mosaic" band in 14k yellow gold, featuring multiple diamonds, rests on a rough blue gemstone atop a textured gray surface.The "Mosaic" band in 14k yellow gold is displayed balanced on a rough dark stone, with the Earth’s Treasury logo at the bottom on a textured grey surface.

    The “Mosaic” Band

    $2,900.00

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  • The Prong-Set "Valeria" Halo Ring is showcased against a green and silver background. The central vibrant blue gemstone is surrounded by a halo of small, round, white diamonds, all set in a gold band. The text "EARTH'S TREASURY" is displayed at the bottom.The Prong-Set "Valeria" Halo Ring features a meticulous, ornate design showcasing a striking blue gemstone at its core, captured from a side perspective. The ring rests on a textured gray surface with an additional small blue stone as an accent. The text "Earth's Treasury" is displayed at the bottom.

    The Prong-Set “Valeria” Halo Ring

    $2,800.00

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  • Displayed is "The 'Olea' Hidden Halo Solitaire," a stunning silver ring with an intricate, twisted band and a round, green gem at its center. The backdrop is filled with lush green leaves, and the text "EARTH'S TREASURY" is prominently featured at the bottom of the image.Close-up of the "Olea" Hidden Halo Solitaire ring featuring a green gemstone, seen from the side, showcasing its intricate braided band design. The ring is positioned upright on a textured blue rock against a gray background. The text "Earth's Treasury" is visible at the bottom of the image.

    The “Olea” Hidden Halo Solitaire

    $2,050.00

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  • A round-cut light yellow-green gemstone set in a gold ring with a patterned band, displayed on a green leaf background. The name "The 'Kerria' Solitaire" is visible at the bottom of the image.The "Kerria" Solitaire ring, set with a light green gemstone in an elegant V-shaped prong setting, features a sleek, modern design. Displayed upright on a textured gray surface, it is accompanied by the brand name "Earth's Treasury" below.

    The “Kerria” Solitaire

    $2,050.00

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  • The "Champlain" Band, a curved silver ring adorned with alternating blue and white gemstones, is displayed upright on a textured gray surface. The round stones are evenly spaced, creating a striking contrast. The brand name "Earth's Treasury" is visible below the ring.A silver "Champlain" Band adorned with alternating blue and white gemstones rests on a deep blue stone. The image has a textured, gray background and features the logo and text "Earth's Treasury" at the bottom center.

    The “Champlain” Band

    $2,400.00

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  • The "Ariadne" Five-Stone Ring in 14k yellow gold with 2.41-Carat Montana SapphireThe "Ariadne" Five-Stone Ring in 14k yellow gold with 2.41-Carat Montana Sapphire

    The “Ariadne” Five-Stone Ring

    $5,200.00

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  • The Low-Profile "Emma" ring in 14K rose gold with a 0.76-carat Montana sapphire is shown vertically on a green leaf, with "Earth's Treasury" displayed below.A 0.76-carat Montana sapphire Low-Profile "Emma" ring in 14K rose gold rests on a rough blue stone atop a patterned metallic surface. Below, "EARTH'S TREASURY" highlights the ring’s elegant solitaire design.

    The Low-Profile “Emma” Solitaire

    $2,200.00

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  • The "Magnolia" band in platinum, featuring three marquise and pear-cut gemstones, rests on a rough blue crystal with a geometric patterned background and the “Earth’s Treasury” logo below.The "Magnolia" band in platinum, featuring three marquise and pear-cut gemstones, rests on a rough blue crystal with a geometric patterned background and the “Earth’s Treasury” logo below.

    The “Magnolia” Band

    $1,900.00

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  • The "Posey" band in 18K yellow gold with a geometric design is displayed upright before a rough blue gemstone, set against a textured gray background with the Earth's Treasury logo below.The "Posey" band in 18K yellow gold with a geometric design is displayed upright before a rough blue gemstone, set against a textured gray background with the Earth's Treasury logo below.

    The “Posey” Band

    $2,100.00

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  • The "Posey" ring in 14k rose gold features a 1.38-carat Montana sapphire center gemstone with marquise-shaped white side stones, displayed on a green leaf with the Earth’s Treasury logo below.The "Posey" ring in 14k rose gold with a 1.38-carat Montana sapphire is displayed on a blue mineral and patterned surface.

    The “Posey” Cluster Ring

    $3,200.00

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  • The "Deliah" Band in 14k Yellow goldThe "Deliah" Band in 14k Yellow gold

    The “Deliah” Band

    $2,100.00

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  • The "Deliah" ring in 14k yellow gold with 1.82-carat Montana sapphireThe "Deliah" ring in 14k yellow gold with 1.82-carat Montana sapphire

    The “Deliah” Ring

    $2,900.00

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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.