4.0 mm

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  • The "Theo" ring in 14k rose gold features a 0.48-carat heirloom diamond at its center, shown atop a green leaf with the Earth's Treasury logo beneath.The "Theo" ring in 14k rose gold features a 0.48-carat heirloom diamond set upright and is photographed on a textured gray surface with a rough blue stone in the background.

    The “Theo” Ring

    $2,500.00

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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 "Shannon" ring in platinum, featuring a 1.06-carat Montana sapphire and detailed Celtic knotwork, is shown on a green stem with "Earth's Treasury" beneath.The "Shannon" ring in platinum with a 1.06-carat Montana Sapphire is displayed upright, highlighting the blue rectangular stone and band against a textured metallic background. The "Earth's Treasury" logo appears below.

    The “Shannon” Ring

    $3,300.00

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  • The Wide "Larisa" ring in 14k white gold with 1.42-carat Montana sapphireThe Wide "Larisa" ring in 14k white gold with 1.42-carat Montana sapphire

    The Wide “Larisa” Solitaire

    $2,700.00

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  • The "Linden" Ring in Platinum with 1.76-Carat Montana SapphireThe "Linden" Ring in Platinum with 1.76-Carat Montana Sapphire

    The “Linden” Ring

    $2,450.00

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  • Stacked from 39 images. Method=B (R=8, S=4) gold Gaia ring with large oval blue gemstone and two textured gold bands, displayed on a green leaf. 'Earth's Treasury' logo and text below.The "Gaia" ring in 14k yellow gold, featuring a 4.63-carat Montana Sapphire, stands upright on rough gray stone, with the Earth's Treasury logo at the bottom of the image.

    The “Gaia” Double Pave Ring

    $3,500.00

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  • The "Keeley" ring in 14k yellow gold with 1.61-Carat Montana sapphireThe "Keeley" ring in 14k yellow gold with 1.61-Carat Montana sapphire

    The “Keeley” Diamond-Accented Solitaire

    $2,600.00

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  • The "Caspian" ring in 18k yellow gold with deep blue sapphiresThe "Caspian" ring in 18k yellow gold with deep blue sapphires

    The “Caspian” Ring

    $4,700.00

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  • The "Narcissus" in 18k yellow gold with 1.27-carat Australian sapphireThe "Narcissus" in 18k yellow gold with 1.27-carat Australian sapphire

    The “Narcissus” Solitaire

    $1,950.00

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  • The "Laurel" ring in 14K yellow gold with 1.64-carat Australian sapphireThe "Laurel" ring in 14K yellow gold with 1.64-carat Australian sapphire

    The “Laurel” Ring

    $2,700.00

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  • A textured platinum "Luna" band, 6mm wide, with a bubble-like pattern is displayed resting on a rough blue stone, with the "Earth's Treasury" logo below.A platinum "Luna" band, 6mm wide with a textured, bubbled surface, is shown leaning against a rough blue gemstone on a gray patterned background. The text "EARTH'S TREASURY" appears below.

    The “Luna” Ring

    $2,600.00

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  • The "Rainier" ring in 14K white gold, 6.0mmThe "Rainier" ring in 14K white gold, 6.0mm

    The “Rainier” Ring

    $2,800.00

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  • The "Kinabalu" Ring in 14k yellow goldThe "Kinabalu" Ring in 14k yellow gold

    The “Kinabalu” Ring

    $2,800.00

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  • The "Kilimanjaro" ring in 14K white goldThe "Kilimanjaro" ring in 14K white gold

    The “Kilimanjaro” Classic Sapphire Ring

    $2,700.00

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  • The "Denali" ring in 14K yellow gold, featuring a round blue gemstone, is balanced on a rough rectangular blue stone. The backdrop is a textured, light surface with "EARTH'S TREASURY" displayed at the bottom.The "Denali" ring in 14K yellow gold is shown beside a rough, uncut stone on a light textured surface, with the Earth's Treasury logo displayed below.

    The “Denali” Classic Sapphire Ring

    $2,700.00

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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.