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  • A round brilliant-cut 1.64-carat heated Montana sapphire in blue-green, displayed on a textured light surface, with "EARTH'S TREASURY" text at the bottom.

    1.64-Carat Aqua Montana Sapphire (Heated)

    $4,000.00

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  • A faceted blue and green 1.64-carat heated Montana sapphire rests on a textured gray surface, with the text "EARTH'S TREASURY" at the bottom.

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

    $3,150.00

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  • A 1.64-carat heated Montana Sapphire, round brilliant-cut and blue, displayed on a textured geometric surface with the "Earth's Treasury" logo at the bottom.

    1.64-Carat Teal Blue Montana Sapphire (Heated)

    $3,700.00

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  • A 1.64-carat heated Montana sapphire, round brilliant-cut and blue in color, is shown on a gray textured surface with "EARTH'S TREASURY" written below.

    1.64-Carat Pale Sky Blue Montana Sapphire (Heated)

    $3,700.00

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  • A 1.64-carat heated Montana sapphire with a cushion cut is showcased on a textured light gray surface, with "EARTH'S TREASURY" visible at the bottom.

    1.64-Carat Peacock Blue Montana Sapphire (Heated)

    $4,050.00

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  • A faceted, round 1.64-carat heated Montana sapphire in teal-blue rests on a textured gray surface with "EARTH'S TREASURY" below.

    1.64-Carat Teal Blue Montana Sapphire (Heated)

    $3,700.00

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  • A 1.64-carat heated Montana sapphire with a faceted blue appearance rests on a light, textured surface, displaying "EARTH'S TREASURY" at the bottom.

    1.64-Carat Peacock Blue Montana Sapphire (Heated)

    $2,800.00

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  • A 1.64-carat Mahenge Garnet, faceted and round with a vibrant pink hue, is displayed on a textured gray surface featuring the "Earth's Treasury" logo at the bottom.

    1.64-Carat Rose Pink Mahenge Garnet

    $1,000.00

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  • A 1.64-carat, deep red, emerald-cut Spinel gemstone is displayed upright on a textured light gray surface with "EARTH'S TREASURY" written below.

    1.64-Carat Deep Red Spinel

    $2,900.00

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  • A 1.64-carat faceted rectangular Spinel with a dark, muted purple hue is displayed on a light, textured surface; the "Earth's Treasury" logo appears at the bottom.

    1.64-Carat Purple Spinel

    $1,600.00

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  • 1.64-Carat Aqua Blue Montana Sapphire (Heated)

    1.64-Carat Aqua Blue Montana Sapphire (Heated)

    $3,450.00

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  • 1.64-Carat Deep Blue Montana Sapphire

    1.64-Carat Deep Blue Montana Sapphire

    $4,900.00

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    Add to cartDone
  • 1.64-Carat Rich Purplish-Blue Montana Sapphire

    1.64-Carat Rich Purplish-Blue Montana Sapphire

    $3,100.00

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  • A 1.64-carat medium blue Montana sapphire (heated) with a square cushion cut rests on a textured gray surface, above the text "EARTH'S TREASURY" and a black hexagonal logo.

    1.64-Carat Medium Blue Montana Sapphire (Heated)

    $4,100.00

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    Add to cartDone
  • 1.64-Carat Deep Blue Montana Sapphire (Heated)

    1.64-Carat Deep Blue Montana Sapphire (Heated)

    $2,900.00

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    Add to cartDone
  • A 1.64-carat rich blue Montana Sapphire (heated), brilliantly round-cut, glimmers on a textured gray surface. The "EARTH'S TREASURY" logo and text are displayed at the bottom of the image.

    1.64-Carat Rich Blue Montana Sapphire (Heated)

    $3,300.00

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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.