Heat-Treated Sapphires

We have a great selection of heat-treated sapphires. There are several benefits of the heat treatment process, including its ability to enhance the gemstone’s clarity and develop its color. Heat treatment is done intentionally to change the color of the stone and evaporate the rutile needles, also known as “silk,” in sapphire stones. View our selection below to see our heated Montana sapphire. To simplify your search, use the filter feature to shop by size, shape, and color. Here at Americut Gems, we pride ourselves on selling sapphires that are mined, cut, and polished in the United States. Every purchase of our heat-treated sapphires will also include quality gemcutting reports that confirm the stone’s precision cut and documents of its dimensions and angles. Contact us today for more information.

Showing 1–30 of 416 results

  • Teal Montana sapphire – Round 4.95 carats

    Teal Montana Sapphire – Round 4.95 Carats

    $29,700.00
    Add to cart
  • Teal Montana Sapphire - Oval 3.69 Carats

    Teal Montana Sapphire – Oval 3.69 Carats

    $19,475.00
    Add to cart
  • blue oval montana sapphire

    Bi Color Blue Montana Sapphire – Oval 3.89 Carats

    $18,675.00
    Add to cart
  • Round blue-green Montana sapphire

    Blue-Green Montana Sapphire – Round 3.50 Carats

    $17,925.00
    Add to cart
  • Hexagon blue Montana sapphire

    Blue Montana Sapphire- Hexagon 3.42cts

    $17,925.00
    Add to cart
  • Blue-green sapphire – Cushion 3.72 ct

    Blue Green Montana Sapphire-Cushion 3.72cts

    $17,800.00
    Add to cart
  • Blue-green Montana sapphire – Round 3.88 ct

    Blue-green Montana Sapphire – Round 3.88cts

    $15,800.00
    Add to cart
  • Emerald cut blue-green Montana sapphire

    Bi-Color Blue-Teal Montana Sapphire-Emerald Cut 3.53cts

    $15,250.00
    Add to cart
  • Teal Montana Sapphire – Oval 3.11 Carats

    $14,550.00
    Add to cart
  • Blue-green Montana sapphire – Oval 2.95 carat

    Blue Montana Sapphire – Oval 2.95 Carat

    $14,150.00
    Add to cart
  • Blue-green Montana sapphire – Round Brilliant 3.58 carats

    Bluegreen Montana Sapphire – Round Brilliant 3.58 Carats

    $13,600.00
    Add to cart
  • Unheated blue-green Montana sapphire

    Unheated Bluegreen Montana Sapphire – Divine Radiance 2.91 carats

    $13,125.00
    Add to cart
  • Blue-green Montana sapphire-Oval 3.54 ct

    Blue-Green Montana Sapphire-Oval 3.54cts

    $12,450.00
    Add to cart
  • yellow pear montana sapphire

    Yellow Montana Sapphire-Pear 2.79cts

    $10,750.00
    Add to cart
  • oval montana sapphire

    Blue Montana Sapphire – Oval 3.05 Carats

    $10,525.00
    Add to cart
  • Teal Montana sapphire – Round 2.61 carat

    Teal Montana Sapphire – Round 2.61 Carat

    $10,125.00
    Add to cart
  • Blue sapphire – Round 2.53 carats

    Blue Montana Sapphire- Round 2.53cts

    $10,125.00
    Add to cart
  • Blue Montana sapphire – Cushion 2.97 carats

    Blue Montana Sapphire – Cushion 2.97 Carats

    $10,075.00
    Add to cart
  • Blue Montana sapphire – Round 2.84 carats

    Blue Montana Sapphire – Round 2.84 carats

    $9,750.00
    Add to cart
  • Blue Montana Sapphire – Round 2.90 carats

    $9,475.00
    Add to cart
  • Blue-green sapphire – Hexagon 2.74 carats

    Bluegreen Montana Sapphire – Hexagon 2.74cts

    $9,150.00
    Add to cart
  • Blue-green Montana sapphire – Divine Radiance 2.60 carats

    Bluegreen Montana Sapphire – Divine Radiance 2.60 Carat

    $8,950.00
    Add to cart
  • Green Montana sapphire – Oval 2.75 carat

    Green Montana Sapphire – Oval 2.75 Carat

    $8,950.00
    Add to cart
  • Bluegreen Montana Sapphire – Secret Cove 2.70 Carats

    $8,750.00
    Add to cart
  • Blue Montana sapphire – Round 2.94 carats

    Blue Montana Sapphire – Round 2.94 Carat

    $8,550.00
    Add to cart
  • Blue Green Sapphire- Round 2.56cts

    Blue Green Montana Sapphire- Round 2.56cts

    $8,200.00
    Add to cart
  • Blue Montana Sapphire- Oval 2.17cts

    Blue Montana Sapphire- Oval 2.17cts

    $8,200.00
    Add to cart
  • Blue-green Montana sapphire – Round 2.45 carats

    Blue-Green Montana Sapphire – Round 2.45 carats

    $8,150.00
    Add to cart
  • Blue sapphire - Cushion 2.69 carats

    Blue Montana Sapphire- Cushion 2.69cts

    $8,150.00
    Add to cart
  • White Montana Sapphire – Cross of Light 2.31 Carat

    $8,125.00
    Add to cart