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  • The "Lamia" ring in platinum, featuring a 1.36-carat cushion-cut Montana sapphire and four round blue stones, is displayed on a green leaf. The "EARTH'S TREASURY" logo appears at the bottom.The "Lamia" ring in platinum with a 1.36-carat Montana sapphire stands upright before a rough blue stone on a textured gray surface, with the Earth's Treasury logo below.

    The “Lamia” Ring

    $2,350.00

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  • The "Calliope" ring in 18k yellow gold with 1.71-Carat Montana SapphireThe "Calliope" ring in 18k yellow gold with 1.71-Carat Montana Sapphire

    The “Calliope” Split-Shank Ring

    $1,900.00

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  • The "Calliope" band in 14k yellow goldThe "Calliope" band in 14k yellow gold

    The “Calliope” Band

    $1,400.00

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  • The "Circe" ring in 18K yellow gold with 2.26-carat Montana sapphireThe "Circe" ring in 18K yellow gold with 2.26-carat Montana sapphire

    The “Circe” Halo Ring

    $3,200.00

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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 "Virona" ring in 18k white gold with 1.03-Carat Montana SapphireThe "Virona" ring in 18k white gold with 1.03-Carat Montana Sapphire

    The “Virona” Three-Stone Ring

    $2,450.00

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  • The "Evelyn" ring in Platinum with 1.82-carat Montana sapphireThe "Evelyn" ring in Platinum with 1.82-carat Montana sapphire

    The “Evelyn” Three-Stone Ring

    $2,700.00

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  • The “Luella” engagement ring in 14k rose gold with a 2.30-carat Montana Sapphire is shown upright against a green-striped background, featuring the "Earth's Treasury" logo and text below.The “Luella” ring in 14k rose gold with a 2.30-carat Montana sapphire stands upright on a rough blue-green stone against a textured gray background, with The Earth's Treasury logo at the bottom.

    The “Luella” Solitaire

    $2,050.00

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  • The "Hazel" band in 18k yellow goldThe "Hazel" band in 14k yellow gold

    The “Hazel” Band

    $1,500.00

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  • The Hazel ring in platinum, featuring a 1.10-carat Ceylon sapphire at the center, is elegantly showcased on a green leaf.The "Hazel" ring in platinum with a 1.10-carat Ceylon sapphire is shown upright on a textured grey surface, resting atop a rough blue stone. “EARTH’S TREASURY” is displayed at the bottom of the image.

    The “Hazel” Split-Shank Ring

    $1,800.00

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  • The "Clemencia" ring in platinum with 1.72-carat Ceylon sapphireThe "Clemencia" ring in platinum with 1.72-carat Ceylon sapphire

    The “Clemencia” Hidden Halo Ring

    $2,700.00

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  • The "Phoebe" ring in 14K yellow gold, featuring a 0.73-carat Montana sapphire, rests on a green surface with the text "EARTH'S TREASURY" at the bottom.The "Phoebe" ring in 14K yellow gold, featuring a 0.73-carat Montana sapphire, is displayed on a rough blue stone atop a textured gray surface with the text "Earth's Treasury" below.

    The “Phoebe” Solitaire

    $1,650.00

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  • The "Clarice" ring in 14K yellow gold with a 0.97-carat Montana sapphire rests on a green leaf.The "Clarice" ring in 14K yellow gold, featuring a 0.97-carat Montana sapphire in a prong setting, is displayed upright against a dark stone with the Earth's Treasury logo at the bottom.

    The “Clarice” Solitaire

    $1,700.00

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  • The “Lyra” Solitaire With 1.33-Carat Rich Teal Montana Sapphire (Heated)The “Lyra” Solitaire With 1.33-Carat Rich Teal Montana Sapphire (Heated)

    The “Lyra” Solitaire

    $1,700.00

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  • The "Deirdre" ring in 14k yellow gold with 2.01-carat Montana sapphireThe "Deirdre" ring in 14k yellow gold with 2.01-carat Montana sapphire

    The “Deirdre” Solitaire

    $1,900.00

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  • The "Karelia" ring in 20k pink gold and platinum, with 1.43-Carat Montana SapphireThe "Karelia" ring in 20k pink gold and platinum, with 1.43-Carat Montana Sapphire

    The “Karelia” Diamond-Accented Solitaire

    $1,900.00

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  • The "Hyacinth" ring in 14k white gold with 1.46-Carat Montana SapphireThe "Hyacinth" ring in 14k white gold with 1.46-Carat Montana Sapphire

    The “Hyacinth” Cluster Ring

    $2,400.00

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  • The "Rhiannon" ring in 14k yellow gold with a 2.02-carat Montana Sapphire and two triangular clear stones rests on a green leaf, with "Earth's Treasury" text at the bottom.The "Rhiannon" ring in 14k yellow gold, featuring a 2.02-carat Montana Sapphire center and side stones, stands upright before a rough blue crystal on a textured metallic surface. Earth's Treasury logo appears below.

    The “Rhiannon” Three-Stone Ring

    $2,700.00

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  • The "Eloise" ring in 14k yellow gold with 0.94-Carat Montana SapphireThe "Eloise" ring in 14k yellow gold with 0.94-Carat Montana Sapphire

    The “Eloise” Three-Stone Ring

    $1,950.00

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  • The "Niamh" ring in 14k rose gold features a 0.95-carat oval Montana sapphire center and two small white accent stones, shown on a green surface with the Earth's Treasury logo at the bottom.A "Niamh" ring in 14k rose gold with a 0.95-carat Montana sapphire is displayed upright on a rough blue mineral specimen, with the "Earth's Treasury" logo and text below.

    The “Niamh” Three-Stone Ring

    $1,950.00

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  • The "Naiad" in 14k white gold with 0.87-Carat Montana SapphireThe "Naiad" in 14k white gold with 0.87-Carat Montana Sapphire

    The “Naiad” Three-Stone Ring

    $2,100.00

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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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  • The Bypass "Sappho" in 20k pink gold with 1.01-Carat Montana SapphireThe Bypass "Sappho" in 20k pink gold with 1.01-Carat Montana Sapphire

    The Bypass “Sappho” Cluster Ring

    $2,300.00

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  • The "Vela" ring in 14k white gold with 0.62-carat Montana sapphireThe "Vela" ring in 14k white gold with 0.62-carat Montana sapphire

    The “Vela” Cluster Ring

    $2,300.00

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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.