3.0 mm

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  • The "Musette" ring in 20k pink gold features a 3.21-carat Montana sapphire atop a twisted diamond band, showcased on a green leaf with "EARTH'S TREASURY" displayed at the bottom.The "Musette" ring in 20k pink gold, featuring a 3.21-carat Montana sapphire, stands upright on a rough blue stone with a patterned gray backdrop. "Earth's Treasury" is displayed at the bottom.

    The “Musette” Diamond-Accented Solitaire

    $2,100.00

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  • The "Ceres" ring in 14K white gold features a 2.52-carat Madagascar sapphire accented by two triangular clear stones, displayed on a light green plant stem.The "Ceres" ring in 14K white gold with a 2.52-carat Madagascar sapphire is displayed upright on a textured stone surface, featuring the Earth's Treasury logo at the bottom.

    The “Ceres” Three-Stone Ring

    $2,850.00

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  • The "Waltz" ring in 18K yellow gold features a 1.67-carat square Montana sapphire center and diamond accents on the band, displayed on green with The Earth's Treasury logo elegantly at the bottom.The "Waltz" ring in 18K yellow gold, featuring a 1.67-carat rectangular Montana sapphire and diamond accents, is displayed on a rough blue stone with the "Earth's Treasury" logo beneath.

    The “Waltz” Diamond-Accented Solitaire

    $2,450.00

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  • The Lynet ring in platinum with 3.21-carat Montana sapphireThe Lynet ring in platinum with 3.21-carat Montana sapphire

    The “Lynet” Solitaire

    $2,050.00

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  • The Leith Band in PlatinumThe Leith Band in Platinum

    The “Leith” Band

    $2,100.00

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  • The "Apollo" ring features a 1.35-carat Montana sapphire set in 14K yellow gold, displayed elegantly on a green and silver background.The "Apollo" ring in 14K yellow gold with a 1.35-carat Montana sapphire is displayed on a rough crystal, with the "Earth's Treasury" logo below.

    The “Apollo” Ring

    $3,300.00

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  • The "Corvus" Ring in platinum, set with a 1.00-carat Australian sapphire, is displayed on a green stem with the "EARTH'S TREASURY" logo beneath.A close-up of the Foy, Andrew ring—a silver band with a blue gemstone—viewed from the side on a textured gray surface, with the "Earth's Treasury" logo beneath.

    The “Corvus” Ring

    $2,800.00

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  • The "Mandevilla" band in 14K yellow gold, featuring three round and four baguette diamonds, is displayed on a rough blue stone with the "Earth's Treasury" logo and text below.The "Mandevilla" band in 14K yellow gold, featuring a row of diamonds, rests against a rough, dark stone on a textured gray background. The "Earth’s Treasury" logo appears at the bottom of the image.

    The “Mandevilla” Band

    $2,700.00

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  • The "Mielikki" ring in 14K yellow gold with 2.76-Carat Montana sapphireThe "Mielikki" ring in 14K yellow gold with 2.76-Carat Montana sapphire

    The “Mielikki” Three-Stone Ring

    $3,850.00

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  • The Ombre Sapphire Band in platinumnThe Ombre Sapphire Band in platinum

    The Ombre Sapphire Band

    $2,600.00

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  • The "Minthe" ring in 14k white gold showcases a 1.39-carat Montana sapphire with round side stones, elegantly displayed on a green leaf. The Earth's Treasury logo is featured at the bottom.The "Minthe" ring in 14k white gold with a 1.39-carat Montana Sapphire is displayed upright against a rough blue stone on a textured gray surface. "EARTH'S TREASURY" is written below.

    The “Minthe” Ring

    $2,600.00

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  • The Classic Wedding Band, Standard Fit 2mm, 3mm, 5mm, 7mm and 9mmA Classic Band, Comfort Fit in 14K yellow gold (5.0mm wide), rests on a rough blue-green stone atop a textured gray surface with the "Earth's Treasury" logo below.

    The Classic Band, Comfort Fit

    $690.00

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  • The Classic Wedding Band, Standard Fit 2mm, 3mm, 5mm, 7mm and 9mmThe Classic Wedding Band, Standard Fit

    The Classic Band, Standard Fit

    $525.00

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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.