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  • The "Firenze" ring, expertly crafted in 18k yellow gold, features a 0.61-carat Montana sapphire center stone accented by two clear side stones. The ring is displayed on a rough blue-green mineral, with the "Earth's Treasury" text below.Presenting the "Firenze" ring in 18k yellow gold, showcasing a 0.61-carat Montana sapphire at its center and accented by two rectangular clear stones. Displayed elegantly atop a rough dark blue crystal, this striking piece is ready to ship.

    The “Firenze” Ring

    $4,950.00

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  • A 0.88-carat Montana sapphire with rectangular facets and light green-yellow hues rests on a textured gray surface, with the "Earth’s Treasury" logo and text below.

    0.88-Carat Mint Green Montana Sapphire

    $950.00

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  • A 1.56-carat rectangular, greenish-blue faceted sapphire rests on a textured surface with the "Earth's Treasury" logo and text below.

    1.56-Carat Mint Green Madagascar Sapphire (Heated)

    $2,400.00

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  • A 2.12-carat rich green Colombian emerald (oiled), cut in a rectangular faceted shape, displayed on a textured surface with the text "Earth's Treasury" below.

    2.12-Carat Rich Green Colombian Emerald

    $12,700.00

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  • A 0.39-carat color-change garnet, cut in a rectangular faceted shape, rests on a textured light surface with the "EARTH'S TREASURY" logo beneath it.

    0.39-Carat Steely Blue to Purple Color Change Garnet

    $350.00

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  • A 0.97-carat rectangular, faceted Spessartine Garnet with an orange hue is shown on a textured gray surface, featuring the "EARTH'S TREASURY" text and hexagon logo below.

    0.97-Carat Orange Spessartine Garnet

    $750.00

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  • A 0.69-carat Maine tourmaline, rectangular and faceted in light blue-green, is shown on a textured gray background with "Earth's Treasury" visible below.

    0.69-Carat Light Aqua Maine Tourmaline

    $300.00

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  • A 1.06-carat Maine tourmaline, rectangular and faceted in teal, rests on a textured gray surface with geometric patterns; "EARTH'S TREASURY" logo appears below.

    1.06-Carat Light Aqua Maine Tourmaline

    $450.00

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  • A rectangular, faceted 0.86-carat heated Montana sapphire in blue-green rests on a textured light gray surface, with "EARTH'S TREASURY" and two logos visible at the bottom.

    0.86-Carat Teal Montana Sapphire (Heated)

    $900.00

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  • A Custom ring in platinum with a 1.27-carat Montana sapphire center, surrounded by small clear diamonds, is displayed on a green leaf.The "Celisse" ring in platinum, featuring a 1.27-carat Montana sapphire, is displayed on a rough blue mineral, with the "Earth's Treasury" logo below.

    The “Celisse” Halo Ring

    $2,200.00

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  • The "Josephine" ring in 18K white gold, featuring a 1.60-carat Ceylon sapphire with a prong-set halo of diamonds, is displayed on a blue-green gemstone against a patterned gray background with the "Earth's Treasury" logo below.The "Josephine" ring in 18K white gold, featuring a 1.60-carat Ceylon sapphire with a prong-set halo of diamonds, is displayed on a blue-green gemstone against a patterned gray background with the "Earth's Treasury" logo below.

    The “Josephine” Halo Ring

    $3,100.00

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    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • A 0.76-carat heated Montana sapphire with radiant facets is displayed on a textured light surface, featuring the text "EARTH'S TREASURY" and a small hexagonal logo below.

    0.76-Carat Sky Blue Montana Sapphire (Heated)

    $800.00

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  • A 1.22-carat heated Montana sapphire, cut in a rectangular shape with multiple facets, rests on a textured light surface with "EARTH'S TREASURY" written below.

    1.22-Carat Teal Blue Montana Sapphire (Heated)

    $1,300.00

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  • A 1.35-carat rectangular, faceted Montana Sapphire (heated) is displayed on a light textured surface with the text "EARTH'S TREASURY" below it.

    1.35-Carat Aqua Blue Montana Sapphire (Heated)

    $2,700.00

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  • A 1.37-carat heated Montana sapphire, rectangular and blue with facet cuts, rests on a textured light surface. "Earth's Treasury" appears at the bottom of the image.

    1.37-Carat Peacock Blue Montana Sapphire (Heated)

    $2,100.00

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  • A 1.42-carat heated Montana sapphire with a rectangular, faceted cut is displayed on a textured, light background, featuring the text "EARTH'S TREASURY" at the bottom.

    1.42-Carat Peacock Blue Montana Sapphire (Heated)

    $2,400.00

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  • A rectangular, faceted blue 1.49-carat Montana Sapphire (Heated) rests on a textured surface featuring the "EARTH'S TREASURY" text and logo at the bottom.

    1.49-Carat Teal Blue Montana Sapphire (Heated)

    $2,500.00

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  • A 1.54-carat heated Montana sapphire with a rectangular brilliant cut sits on a textured light gray surface, "EARTH'S TREASURY" displayed below.

    1.54-Carat Teal Blue Montana Sapphire (Heated)

    $2,600.00

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  • A 1.88-carat heated Montana sapphire, cut in a rectangular faceted shape, rests on a textured metallic surface with the Earth’s Treasury logo below.

    1.88-Carat Peacock Blue Montana Sapphire (Heated)

    $4,000.00

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  • A faceted, rectangular blue-green 1.98-carat heated Montana Sapphire rests on a textured gray surface, labeled "EARTH'S TREASURY" at the bottom.

    1.98-Carat Spruce Green Montana Sapphire (Heated)

    $5,450.00

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  • A rectangular, faceted 2.17-carat heated Montana sapphire with a blue hue is displayed on a textured light surface, featuring the "EARTH'S TREASURY" logo beneath.

    2.17-Carat Peacock Blue Montana Sapphire (Heated)

    $3,200.00

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  • A 2.32-carat rectangular, faceted Montana sapphire (heated) with a vivid blue hue is displayed on a textured gray surface, featuring the text "EARTH'S TREASURY" underneath.

    2.32-Carat Light Sky Blue Montana Sapphire (Heated)

    $5,900.00

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  • A 2.51-carat heated Montana sapphire with geometric facets is displayed on a textured gray surface, with the Earth’s Treasury logo at the bottom.

    2.51-Carat Teal Green Montana Sapphire (Heated)

    $4,500.00

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  • A 2.68-carat heated Montana sapphire, cut in a rectangular shape, is displayed on a textured light surface with the Earth's Treasury logo at the bottom.

    2.68-Carat Peacock Blue Montana Sapphire (Heated)

    $9,200.00

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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.