1.60

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  • A 1.60-carat heated Montana sapphire, faceted in an oval cut with a deep blue hue, displayed on a textured gray surface above the text "EARTH'S TREASURY.

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

    $2,300.00

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  • A 1.60-carat heated Montana sapphire, round brilliant-cut and blue, is displayed on a textured light gray surface with "EARTH’S TREASURY" at the bottom.

    1.60-Carat Peacock Blue Montana Sapphire (Heated)

    $4,000.00

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  • A rectangular, faceted 1.60-carat heated Montana sapphire with a blue hue is shown on a textured grey surface, the "Earth's Treasury" logo displayed below.

    1.60-Carat Peacock Blue Montana Sapphire (Heated)

    $3,250.00

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  • 1.60-Carat Aqua-Blue Particolored Montana Sapphire (Heated)

    1.60-Carat Aqua-Blue Particolored Montana Sapphire (Heated)

    $3,050.00

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  • A 1.60-carat heated Montana sapphire is displayed on a textured light gray surface with the text "EARTH'S TREASURY" below it.

    1.60-Carat Teal Blue Montana Sapphire (Heated)

    $3,050.00

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  • A faceted oval 1.60-carat heated Montana sapphire is displayed on a textured gray surface, with the text "EARTH'S TREASURY" at the bottom.

    1.60-Carat Teal Blue Montana Sapphire (Heated)

    $3,600.00

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    Add to cartDone
  • A 1.60-carat heated Montana Sapphire, round brilliant-cut and blue, is displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    1.60-Carat Teal Blue Montana Sapphire (Heated)

    $3,950.00

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  • A 1.60-carat, cushion-cut violet-gray spinel is shown on a light textured surface with "Earth's Treasury" displayed underneath.

    1.60-Carat Purple Spinel

    $1,500.00

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  • A 1.60-carat, cushion-cut lavender spinel rests on a textured gray surface, with the "Earth's Treasury" logo and text at the bottom.

    1.60-Carat Light Purple Spinel

    $1,600.00

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  • A 1.60-carat Ceylon blue sapphire, cushion-cut, is displayed on a textured surface with the "Earth's Treasury" logo beneath.

    1.60-Carat Sky Blue Ceylon Sapphire

    $3,200.00

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  • A round, faceted 1.60-carat Montana Sapphire (Heated) with shades of blue sits on a textured surface, with "Earth's Treasury" written at the bottom in black text.

    1.60-Carat Steely Blue Montana Sapphire (Heated)

    $3,600.00

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    Add to cartDone
  • 1.60-Carat Medium Blue Montana Sapphire (Heated)

    1.60-Carat Medium Blue Montana Sapphire (Heated)

    $3,600.00

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    Add to cartDone
  • A 1.60-carat light violet Ceylon sapphire on a textured surface, labeled "Earth's Treasury.

    1.60-Carat Light Violet Purple Ceylon Sapphire

    $3,100.00

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    Add to cartDone
  • 1.60-Carat Hazy Grayish Purple Umba Sapphire

    1.60-Carat Hazy Grayish Purple Umba Sapphire

    $950.00

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    Add to cartDone
  • 1.60-Carat Rich Blue Montana Sapphire (Heated)

    1.60-Carat Rich Blue Montana Sapphire (Heated)

    $3,200.00

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    Add to cartDone
  • A 1.60-carat orange-yellow particolored Montana sapphire (heated) is displayed on a textured gray surface featuring the Earth's Treasury logo at the bottom.

    1.60-Carat Orange-Yellow Particolored Montana (Heated)

    $2,700.00

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  • A 1.60-carat deep blue-green heated Montana sapphire is shown on textured gray, with "EARTH'S TREASURY" and a hexagon logo below.

    1.60-Carat Midnight Blue-Green Montana Sapphire (Heated)

    $3,200.00

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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.