Learn About

Montana Sapphire Heat Treatments

Learn About

Heat Treating Sapphires

Sapphire heat treating has been practiced worldwide for hundreds of years. Heat treating is a process of taking sapphires to high temperatures, and the high temperatures react with natural elements already present in the sapphires to enhance the stones' best color. Heat treating produces dramatic results by minimizing color zoning and improving the stone's saturation. For example, a blue sapphire can have green undertones, and heat treating would optimize the gem's color intensity and clarity by minimizing those undertones. While there is always some risk of fracture, all stones at Sapphire Gallery, in Philipsburg, Montana, are heat treated locally in a controlled atmosphere with optimal conditions for improving the quality and value of the stones.


I want to say thank you to all the wonderful people who helped us when we visited. You stayed open late for us one night just so we could look around and the next morning when we made it back to look for sapphires we had the most wonderful conversations Andria,Texas