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  • 1.23-Carat Golden Yellow Montana Sapphire (Heated)

    1.23-Carat Golden Yellow Montana Sapphire (Heated)

    $1,300.00

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  • 1.48-Carat Rich Blue Montana Sapphire (Heated)

    1.48-Carat Rich Blue Montana Sapphire (Heated)

    $3,000.00

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  • A 1.86-carat Medium Blue Montana Sapphire (Heated) is displayed faceted on a textured surface with the Earth’s Treasury logo beneath it.

    1.86-Carat Medium Blue Montana Sapphire (Heated)

    $4,200.00

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  • A faceted teal blue Montana sapphire, weighing 2.10 carats and displayed on a textured surface, with the text "EARTH'S TREASURY" visible at the bottom.

    2.10-Carat Medium Blue Montana Sapphire (Heated)

    $3,900.00

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  • The "Passiflora" Ring in 14k rose gold with 0.99-carat Montana sapphireThe "Passiflora" Ring in 14k rose gold with 0.99-carat Montana sapphire

    The “Passiflora” Halo Ring

    $2,900.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Tiara" ring in platinum features a 2.00-carat Montana sapphire, showcased atop a green leaf with "Earth's Treasury" displayed below.The "Tiara" ring in platinum features a 2.00-carat Montana sapphire accented by small clear stones, displayed upright on a textured gray stone, with the "Earth's Treasury" logo at the bottom.

    The “Tiara” Hidden Halo Solitaire

    $1,800.00

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  • The "Jasmine" ring in platinum features a 1.05-carat Montana sapphire center, accented by smaller clear and blue stones for floral elegance. Displayed on green leaves with the Earth's Treasury logo below.The "Jasmine" ring in platinum with a 1.05-carat Montana sapphire rests on a rough blue stone atop a textured gray surface, with the Earth's Treasury logo below—an elegant jewelry piece for any occasion.

    The “Jasmine” Ring

    $2,500.00

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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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  • A 1.18-Carat Light Violet Blue Montana Sapphire is showcased on a textured gray surface, featuring the "Earth's Treasury" logo at the bottom.

    1.18-Carat Light Violet-Blue Montana Sapphire

    $2,750.00

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  • 1.50-Carat Pale Violet Montana Sapphire

    1.50-Carat Pale Violet Montana Sapphire

    $3,750.00

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  • 1.26-Carat Teal Blue Montana Sapphire (Heated)

    1.26-Carat Teal Blue Montana Sapphire (Heated)

    $2,200.00

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  • 2.40-Carat Deep Blue-Green Montana Sapphire (Heated)

    2.40-Carat Deep Blue-Green Montana Sapphire (Heated)

    $4,800.00

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  • 0.81-Carat Lemon Yellow Montana Sapphire

    0.81-Carat Lemon Yellow Montana Sapphire

    $900.00

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  • The "Lonicera" ring in 14k rose gold features a 0.93-carat Montana sapphire at its center, accented by two sparkling side stones—where nature’s elegance meets fine jewelry.The "Lonicera" ring in 14k rose gold with a 0.93-carat Montana sapphire stands upright on a rough blue stone, set against a gray textured background. The Earth's Treasury jewelry logo appears at the bottom.

    The “Lonicera” Ring

    $2,800.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Amphitrite" platinum ring, featuring a 1.81-carat Montana sapphire, is displayed upright against a green leaf background.A platinum "Amphitrite" ring with a 1.81-carat Montana sapphire is displayed upright on a textured blue stone background, with the text "EARTH'S TREASURY" below.

    The Petite Pave “Amphitrite” Hidden Halo Ring

    $2,600.00

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  • The "Celaeno" ring in 14K yellow gold features a 1.02-carat Australian sapphire and two clear geometric stones, elegantly displayed on a green leaf with The Earth's Treasury logo at the bottom.The "Celaeno" ring in 14K yellow gold features a 1.02-carat Australian sapphire and sparkling side stones, elegantly presented on a rough blue mineral with a textured gray background.

    The “Celaeno” Three-Stone Ring

    $4,300.00

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  • A rectangular blue "Cyanea" three-stone ring in 18K white gold with a 2.69-carat Montana sapphire is displayed on a green plant stem, the Earth’s Treasury logo shown below.The "Cyanea" three-stone ring in 18K white gold showcases a 2.69-carat Montana sapphire and three rectangular faceted stones, photographed from above on a textured gray surface.

    The “Cyanea” Three-Stone Ring

    $3,850.00

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  • The "Mandevilla" ring in 14k yellow gold, featuring a 1.80-carat Australian sapphire and two rectangular side stones, is shown vertically on a lush green leaf. "EARTH'S TREASURY" appears at the bottom.The "Mandevilla" ring in 14k yellow gold with a 1.80-carat Australian sapphire stands upright on rough blue stone against a geometric metallic backdrop, with the Earth’s Treasury logo featured below.

    The “Mandevilla” Three-Stone Ring

    $3,150.00

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  • 0.75-Carat Medium Blue Montana Sapphire (Heated)

    0.75-Carat Medium Blue Montana Sapphire (Heated)

    $675.00

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  • 0.76-Carat Medium Blue Montana Sapphire (Heated)

    0.76-Carat Medium Blue Montana Sapphire (Heated)

    $600.00

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  • A round, faceted teal Aqua gemstone is placed on a textured surface, with the text "Earth's Treasury" below it.

    2.84-Carat Nasarawa Teal Aqua

    $4,380.00

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  • A 1.05-carat Nasarawa Teal Aqua gemstone displayed on a textured surface.

    1.05-Carat Nasarawa Teal Aqua

    $1,300.00

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  • A faceted 1.38-carat Nasarawa Teal Aqua gemstone with slight inclusions is placed on a textured, light gray surface. The text "Earth's Treasury" is visible at the bottom of the image.

    1.38-Carat Nasarawa Teal Aqua

    $1,700.00

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  • A 1.53-carat purple Ceylon sapphire is showcased on a textured gray surface, exhibiting brilliant reflections.

    1.53-Carat Rich Violet Purple Ceylon Sapphire

    $2,650.00

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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.