Oval

Showing 1345–1368 of 1877 resultsSorted by latest

  • 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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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Guanyin" ring in 18K yellow gold, featuring a 1.94-carat Malaia garnet, is displayed on dark stone with a geometric patterned background.The "Guanyin" ring in 18K yellow gold, featuring a 1.94-carat Malaia garnet, is displayed on dark stone with a geometric patterned background.

    The “Guanyin” Ring

    $2,250.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • A blue Montana sapphire in our "Testudo" oval design

    0.88-Carat Medium Blue Montana Sapphire (Heated)

    $900.00

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  • A blue Montana sapphire in our "Testudo" oval design

    0.83-Carat Sky Blue Montana Sapphire (Heated)

    $800.00

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  • A 1.36-carat heated teal blue Montana Sapphire rests on a textured gray surface, with "Earth's Treasury" below it.

    1.36-Carat Teal Blue Montana Sapphire (Heated)

    $2,100.00

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  • A blue-green Montana sapphire in our "Hyperbola" oval design

    1.33-Carat Teal Blue Montana Sapphire (Heated)

    $1,650.00

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  • A blue Montana sapphire in our "Hyperbola" oval design

    1.04-Carat Pale Sky Blue Montana Sapphire (Heated)

    $1,700.00

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  • A 1.67-carat medium blue Montana Sapphire (heated) is displayed on a textured gray surface with the text "Earth's Treasury" and a hexagon logo beneath it.

    1.67-Carat Medium Blue Montana Sapphire (Heated)

    $3,250.00

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  • 1.59-Carat Medium Blue Montana Sapphire (Heated)

    1.59-Carat Medium Blue Montana Sapphire (Heated)

    $3,200.00

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  • A color-change Montana sapphire in our "Helena" oval design

    1.18-Carat Violet-Blue Montana Sapphire (Heated)

    $2,100.00

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  • A color-change Montana sapphire in our "Serendipity" oval design

    1.08-Carat Gray to Purple Color Change Montana Sapphire (Heated)

    $1,900.00

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  • A color-change Montana sapphire in our "Serendipity" oval design

    1.14-Carat Rich Violet Blue Montana Sapphire (Heated)

    $1,900.00

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  • A yellow Montana sapphire in our "Serendipity" oval design

    1.01-Carat Pale Yellow Montana Sapphire (Heated)

    $1,000.00

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  • A 1.43-carat orange-colorless particolored Montana Sapphire (heated) rests on a textured metallic surface, with the "Earth's Treasury" logo and text below.

    1.43-Carat Orange-Colorless Particolored Montana Sapphire (Heated)

    $2,500.00

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  • A 1.39-carat yellow-colorless particolored Montana Sapphire (heated) is displayed on a textured gray surface, with "EARTH'S TREASURY" text and logo below.

    1.39-Carat Yellow-Colorless Particolored Montana Sapphire (Heated)

    $1,950.00

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  • 1.32-Carat Yellow-Orange Particolored Montana Sapphire (Heated)

    1.32-Carat Yellow-Orange Particolored Montana Sapphire (Heated)

    $1,900.00

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  • A purple Montana sapphire in our "Serendipity" oval design

    1.39-Carat Steely Blue-Violet Particolored Montana Sapphire (Heated)

    $1,300.00

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  • A blue Montana sapphire in our "Serendipity" oval design

    1.09-Carat Peacock Blue Montana Sapphire (Heated)

    $1,450.00

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  • A 1.29-carat heated aqua blue Montana Sapphire, cut in a round brilliant style, sits on a textured metallic surface with the text "EARTH'S TREASURY" below.

    1.29-Carat Aqua Blue Montana Sapphire (Heated)

    $1,950.00

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  • A 1.52-Carat Deep Blue Montana Sapphire (Heated) is shown on a textured gray surface with the "Earth's Treasury" logo at the bottom.

    1.52-Carat Deep Blue Montana Sapphire (Heated)

    $2,200.00

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    Add to cartDone
  • A blue Montana sapphire in our "Serendipity" oval design

    1.09-Carat Medium Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • A blue Montana sapphire in our "Serendipity" oval design

    1.40-Carat Sky Blue Montana Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • 2.96-Carat Midnight Blue Montana Sapphire (Heated)

    2.96-Carat Midnight Blue Montana Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • A particolored Montana sapphire in our "Hyperbola" oval design

    0.92-Carat Sky Blue Montana Sapphire

    $1,300.00

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    Add to cartDone

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.