10.0 mm

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  • The Wide “Borealis” Ring in Blue-Violet Sapphire, featuring clustered blue, purple, and clear gemstones, is displayed upright on a rough blue stone with a textured gray background.The Wide “Borealis” Ring in Blue-Violet Sapphire rests on a rough blue-green crystal, featuring vibrant gemstones and the Earth's Treasury logo below.

    The Wide “Borealis” Ring

    $7,700.00

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  • Sale! The Wide Borealis Ring in 18k white gold with Unheated Montana SapphiresThe Wide Borealis Ring in 18k white gold with Unheated Montana Sapphires

    Ready to Ship Wide “Borealis” Ring in Blue-Violet Sapphire

    Original price was: $7,900.00.Current price is: $6,400.00.

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  • The "Clint" in platinum and 18k yellow gold with 2.59-carat Montana sapphireThe "Clint" in platinum and 18k yellow gold with 2.59-carat Montana sapphire

    The “Clint” Ring

    $8,300.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Perseus" ring in platinum and 18k yellow gold with custom-cut diamondThe "Perseus" ring in platinum and 18k yellow gold with custom-cut diamond

    The “Perseus” Ring

    $8,300.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page

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.