1.78

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  • 1.78-carat Sky Blue-Orange Particolored Montana Sapphire (Heated) in a round faceted cut, showcasing a vibrant mix of yellow, brown, and blue hues, displayed on a textured surface with the Earth’s Treasury logo visible below.

    1.78-Carat Sky Blue-Brownish Orange Particolored Montana Sapphire (Heated)

    $2,900.00

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  • A round, faceted 1.51-carat gray Montana sapphire with dark blue and green hues sits on a textured surface, with “EARTH’S TREASURY” written below the gem.

    1.51-Carat Gray Particolored Montana Sapphire (Heated)

    $2,300.00

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  • A 1.78-carat oval-cut Kenya tourmaline with intricate faceting rests on a textured gray surface, with the Earth’s Treasury logo visible at the bottom.

    1.78-Carat Rich Green Kenyan Chrome Tourmaline

    $850.00

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  • A round, faceted 1.78-carat unheated sapphire with green and blue hues rests on a textured surface. The "Earth's Treasury" logo appears at the bottom.

    1.78-Carat Spruce Green Madagascar Sapphire (Unheated)

    $3,400.00

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  • A 1.78-carat Peacock Blue Montana Sapphire (heated) is displayed on a textured gray surface, with "EARTH'S TREASURY" and a small logo featured at the bottom.

    1.78-Carat Peacock Blue Montana Sapphire (Heated)

    $3,950.00

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  • A 1.78-carat Deep Peacock Montana Sapphire (Heated) is showcased on a textured light surface, with the Earth's Treasury logo and text visible at the bottom.

    1.78-Carat Deep Peacock Montana Sapphire (Heated)

    $2,400.00

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    Add to cartDone
  • A 1.78-carat deep blue Vietnamese sapphire (unheated) with a cushion cut rests on a textured gray surface. "EARTH'S TREASURY" appears at the bottom.

    1.78-Carat Deep Blue Vietnamese Sapphire (Unheated)

    $2,700.00

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  • A 1.78-carat heated Montana sapphire, round and brilliant-cut, rests on a textured gray surface with "EARTH'S TREASURY" visible at the bottom.

    1.78-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $4,050.00

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  • A 1.78-carat heated Montana sapphire, round and faceted, rests on a textured light gray surface with "Earth's Treasury" displayed at the bottom.

    1.78-Carat Peacock Blue Montana Sapphire (Heated)

    $4,050.00

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    Add to cartDone
  • A 1.78-carat heated Montana sapphire with a visible inclusion sits on a textured metallic surface labeled "EARTH'S TREASURY.

    1.78-Carat Medium Blue Montana Sapphire (Heated)

    $2,800.00

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  • A faceted oval 1.78-carat Ceylon Sapphire rests on a textured surface, with the "Earth's Treasury" logo visible at the bottom of the image.

    1.78-Carat Light Cornflower Blue Ceylon Sapphire

    $3,900.00

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  • 1.78-Carat Montana Sapphire (Heated), round brilliant-cut, displayed on a textured gray surface with the "Earth's Treasury" logo and text beneath the stone.

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

    $3,050.00

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    Add to cartDone
  • A 1.78-carat heated Montana sapphire with a round, faceted cut and pink-purple hue is displayed on a textured light gray surface, featuring the text "EARTH'S TREASURY" at the bottom.

    1.78-Carat Purplish Pink-Raspberry Particolored Montana Sapphire (Heated)

    $3,900.00

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  • A 1.78-carat, round brilliant-cut Montana Sapphire is displayed on a textured gray surface, with the text "EARTH'S TREASURY" beneath it.

    1.78-Carat Colorless Montana Sapphire

    $3,500.00

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  • A round, faceted Light Sky Blue 1.78-Carat Montana Sapphire (Heated) sits on a textured gray surface. Label: "Earth's Treasury.

    1.78-Carat Light Sky Blue Montana Sapphire (Heated)

    $3,400.00

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    Add to cartDone
  • 1.78-Carat Near Black Australian Sapphire (Heated)

    1.78-Carat Near Black Australian Sapphire (Heated)

    $1,900.00

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    Add to cartDone
  • A deep blue, faceted 1.78-Carat Ceylon Sapphire with an octagonal shape rests on a textured metallic surface. The words "EARTH'S TREASURY" appear below.

    1.78-Carat Royal Blue-Teal Bicolored Madagascar Sapphire

    $5,300.00

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  • A 1.78-carat medium blue heated Montana Sapphire with a cushion cut rests on a textured gray surface, "EARTH'S TREASURY" displayed below.

    1.78-Carat Medium Blue Montana Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • 1.78-Carat Gray-Blue Umba Sapphire

    1.78-Carat Gray-Blue Umba Sapphire

    $1,400.00

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    Add to cartDone
  • 1.78-Carat Bluish Violet Umba Sapphire

    1.78-Carat Bluish Violet Umba Sapphire

    $1,400.00

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    Add to cartDone
  • A 1.78-carat dark olive green Australian sapphire with a cushion cut is showcased on a textured metallic surface, featuring the "Earth's Treasury" text at the bottom.

    1.78-Carat Dark Olive Green Australian Sapphire (Heated)

    $2,400.00

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    Add to cartDone
  • 1.78-Carat Yellow-Blue Particolored Montana Sapphire (Heated)

    1.78-Carat Yellow-Blue Particolored Montana Sapphire (Heated)

    $3,100.00

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    Add to cartDone
  • A 1.78-carat medium blue heated Montana Sapphire, round and faceted, rests on a textured gray surface with the "Earth's Treasury" logo and text at the bottom.

    1.78-Carat Medium Blue Montana Sapphire (Heated)

    $2,950.00

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    Add to cartDone
  • 1.78-Carat Aqua Blue Montana Sapphire (Heated)

    1.78-Carat Aqua Blue Montana Sapphire (Heated)

    $2,600.00

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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.