Split Shank

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  • An 18K white gold "Cybele" solitaire engagement ring with a 0.96-carat Montana sapphire displayed on a green leaf, with the Earth's Treasury logo at the bottom.The "Cybele" ring in 18K white gold, featuring a 0.96-carat Montana sapphire, is displayed upright on a patterned gray surface. "Earth's Treasury" appears at the bottom.

    The “Cybele” Solitaire

    $1,700.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Diana" ring in 18K yellow gold features a 1.08-carat Montana sapphire center surrounded by diamonds, shown on a green striped leaf.The "Diana" ring in 18K yellow gold with a 1.08-carat Montana sapphire is displayed on a metallic, patterned background featuring the "Earth's Treasury" logo at the bottom.

    The “Diana” Halo Ring

    $2,450.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Calypso" ring in platinum showcases a 2.10-carat Montana sapphire, accented by smaller blue stones and marquise-shaped white details, elegantly displayed on a green plant leaf.The "Calypso" ring in platinum with a 2.10-carat Montana sapphire stands upright before a rough blue stone on textured gray, with the "Earth's Treasury" logo at the bottom.

    The “Calypso” Ring

    $2,600.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Charlotte" ring in 14K white gold features a 1.71-carat Montana sapphire surrounded by clear stones in a split-shank halo design, displayed on a green leaf with the Earth's Treasury logo at the bottom.The "Charlotte" ring in 14K white gold with a 1.71-carat Montana sapphire is displayed upright against a rough blue mineral on a textured gray surface, with the Earth's Treasury logo at the bottom.

    The “Charlotte” Split-Shank Halo Ring

    $3,200.00

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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.