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  • 1.13-Carat Lemon Yellow Australian Sapphire (Heated)

    1.13-Carat Lemon Yellow Australian Sapphire (Heated)

    $1,000.00

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  • 1.00-Carat Light Lime Green Australian Sapphire (Heated)

    1.00-Carat Light Lime Green Australian Sapphire (Heated)

    $1,100.00

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  • The "Andromeda" ring in 14k yellow gold with 1.60-carat Ceylon sapphireThe "Andromeda" ring in 14k yellow gold with 1.60-carat Ceylon sapphire

    The “Andromeda” Ring

    $3,600.00

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  • The "Isolde" in 14k yellow gold with 1.01-carat Montana sapphire alongside the "Minthe" band in 14k yellow goldThe "Isolde" ring in 14k yellow gold with 1.01-carat Montana sapphire

    The “Isolde” Ring

    $2,800.00

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  • The "Aurelia" ring in 14K yellow gold with 0.92-carat Montana sapphireThe "Aurelia" ring in 14K yellow gold with 0.92-carat Montana sapphire

    The “Aurelia” Ring

    $2,600.00

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  • The "Katya" ring in platinum with 1.33-carat Montana sapphireThe "Katya" ring in platinum with 1.33-carat Montana sapphire

    The “Katya” Hidden Halo Solitaire

    $1,800.00

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  • The “Siobhan” ring in platinum with 1.98-carat Montana sapphireThe “Siobhan” ring in platinum with 1.98-carat Montana sapphire

    The “Siobhan” Solitaire

    $1,900.00

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  • The “Vanessa” Ring in 14k yellow gold with 3.08-Carat Montana SapphireThe “Vanessa” Ring in 14k yellow gold with 3.08-Carat Montana Sapphire

    The “Vanessa” Solitaire

    $1,700.00

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  • The 2022-01-10 11-17-33 (B,Radius1,Smoothing1)-1200-BW ring, featuring a blue gemstone in rose gold, is displayed vertically on a green plant stem. Below the ring, the Earth's Treasury logo is visible.The 2022-01-10 11-10-57 (B,Radius1,Smoothing1)-1200-BW ring features a rose gold Demeter Solitaire design with a blue gemstone and engraved band, set on a rough blue stone atop a textured gray surface with the Earth's Treasury logo.

    The “Demeter” Solitaire

    $1,800.00

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  • 0.88-Carat Rich Blue Montana Sapphire (Heated)

    0.88-Carat Rich Blue Montana Sapphire (Heated)

    $800.00

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  • 1.03-Carat Medium Blue Montana Sapphire (Heated)

    1.03-Carat Medium Blue Montana Sapphire (Heated)

    $1,200.00

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  • 0.77-Carat Greenish-Yellow Montana Sapphire (Heated)

    0.77-Carat Greenish-Yellow Montana Sapphire (Heated)

    $700.00

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  • 0.81-Carat Medium Blue Montana Sapphire (Heated)

    0.81-Carat Medium Blue Montana Sapphire (Heated)

    $800.00

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  • 2.24-Carat Rich Blue Montana Sapphire (Heated)

    2.24-Carat Rich Blue Montana Sapphire (Heated)

    $6,300.00

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

    0.71-Carat Yellow-Gold Particolored Montana Sapphire (Heated)

    $600.00

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  • 8.34-Carat Rich Blue Tanzanite

    8.34-Carat Rich Blue Tanzanite

    $5,800.00

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  • A 1.37-carat Teal Blue Montana Sapphire (Heated), faceted and round, is shown on a textured light surface with "Earth's Treasury" written beneath the stone.

    1.37-Carat Teal Blue Montana Sapphire (Heated)

    $2,100.00

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  • A 1.50-carat Rich Blue Montana Sapphire (Heated) rests elegantly on a white surface, its deep blue hue captivating the eye.

    1.50-Carat Rich Blue Montana Sapphire (Heated)

    $3,300.00

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  • 0.87-Carat Light Aqua Blue Montana Sapphire (Heated)

    0.87-Carat Light Aqua Blue Montana Sapphire (Heated)

    $750.00

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  • 1.03-Carat Medium Blue Montana Sapphire (Heated)

    1.03-Carat Medium Blue Montana Sapphire (Heated)

    $1,700.00

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  • 1.38-Carat Aqua Montana Sapphire (Heated)

    1.38-Carat Aqua Montana Sapphire (Heated)

    $1,400.00

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  • 1.47-Carat Medium Blue Montana Sapphire (Heated)

    1.47-Carat Medium Blue Montana Sapphire (Heated)

    $2,900.00

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  • 1.53-Carat Teal Blue Montana Sapphire (Heated)

    1.53-Carat Teal Blue Montana Sapphire (Heated)

    $1,400.00

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  • A 1.90-carat Dusky Yellow Montana Sapphire (Heated), cut in an oval facet, is elegantly displayed on a textured gray surface.

    1.90-Carat Dusky Yellow Montana Sapphire (Heated)

    $1,900.00

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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.