Blue

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  • A 1.27-carat rich blue Montana Sapphire (heated), cut in a round brilliant shape, is displayed on a textured gray surface with "EARTH'S TREASURY" underneath.

    1.27-Carat Rich Blue Montana Sapphire (Heated)

    $2,200.00

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  • A 1.85-carat Cornflower Blue Ceylon Sapphire rests on a textured surface, with the "Earth's Treasury" logo at the bottom.

    1.85-Carat Cornflower Blue Ceylon Sapphire

    $2,440.00

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  • 1.12-Carat Medium Blue Montana Sapphire (Heated)

    1.12-Carat Medium Blue Montana Sapphire (Heated)

    $1,900.00

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

    1.21-Carat Rich Blue Montana Sapphire (Heated)

    $1,800.00

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

    1.33-Carat Medium Blue Montana Sapphire (Heated)

    $1,100.00

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    Add to cartDone
  • A 1.29-carat medium blue heated Montana Sapphire, round brilliant-cut, rests on a textured wooden surface with the Earth’s Treasury logo below.

    1.29-Carat Medium Blue Montana Sapphire (Heated)

    $2,600.00

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  • 0.80-Carat Sky Blue Montana Sapphire

    0.80-Carat Sky Blue Montana Sapphire

    $1,100.00

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    Add to cartDone
  • 0.67-Carat Pale Blue Montana Sapphire

    0.67-Carat Pale Blue Montana Sapphire

    $675.00

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  • 0.87-Carat Medium Blue Montana Sapphire (Heated)

    0.87-Carat Medium Blue Montana Sapphire (Heated)

    $650.00

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

    1.01-Carat Medium Blue Montana Sapphire (Heated)

    $1,800.00

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    Add to cartDone
  • A 1.02-carat Rich Sky Blue Montana Sapphire (Heated) with a cushion cut rests on a textured gray surface, the "Earth's Treasury" logo displayed below.

    1.02-Carat Rich Sky Blue Montana Sapphire (Heated)

    $1,950.00

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    Add to cartDone
  • A 1.46-carat rich blue heated Montana Sapphire with a geometric cut rests on a textured gray background, "EARTH'S TREASURY" printed underneath.

    1.46-Carat Rich Blue Montana Sapphire (Heated)

    $2,900.00

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    Add to cartDone
  • A 1.76-carat medium blue heated Montana Sapphire with a cushion cut rests on a textured gray surface, with the "Earth's Treasury" logo and name displayed at the bottom.

    1.76-Carat Medium Blue Montana Sapphire (Heated)

    $4,400.00

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    Add to cartDone
  • A particolored Montana sapphire in our "Stella" square design

    1.83-Carat Deep Blue-Gold Particolored Montana Sapphire (Heated)

    $3,200.00

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    Add to cartDone
  • 1.06-Carat Rich Blue Montana Sapphire (Heated) in round brilliant cut displayed on a textured gray surface, featuring the "Earth's Treasury" logo at the bottom.

    1.06-Carat Rich Blue Montana Sapphire (Heated)

    $1,950.00

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    Add to cartDone
  • A 1.14-carat rich blue Montana Sapphire (heated), round brilliant-cut, is shown on a textured gray surface with "EARTH'S TREASURY" visible beneath the gem.

    1.14-Carat Rich Blue Montana Sapphire (Heated)

    $2,250.00

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

    1.09-Carat Medium Blue Montana Sapphire (Heated)

    $1,700.00

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    Add to cartDone
  • A 1.27-carat medium blue heated Montana Sapphire, round brilliant-cut, sits on a textured gray surface with "EARTH'S TREASURY" displayed below.

    1.27-Carat Medium Blue Montana Sapphire (Heated)

    $2,200.00

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    Add to cartDone
  • A 1.40-carat medium blue Montana Sapphire (heated), round and faceted, rests on a textured gray surface above the “EARTH’S TREASURY” text and a geometric logo.

    1.40-Carat Medium Blue Montana Sapphire (Heated)

    $2,700.00

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

    1.50-Carat Medium Blue Montana Sapphire (Heated)

    $1,800.00

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

    1.00-Carat Rich Blue Montana Sapphire (Heated)

    $1,800.00

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

    1.44-Carat Rich Blue Montana Sapphire (Heated)

    $1,300.00

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    Add to cartDone
  • 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
  • 1.24-Carat Rich Blue Montana Sapphire (Heated) with a round brilliant cut displayed on textured gray, featuring the "EARTH'S TREASURY" logo and text below.

    1.24-Carat Rich Blue Montana Sapphire (Heated)

    $2,400.00

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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.