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0.71CT GEOMETRIC MONTANA SAPPHIRE, LIGHT BLUE GREY, 7.55X4.60MM. Heat treated. Custom cut in the USA by one of our favorite creative gem cutters and mined in Montana, USA. This sapphire features a geometric tapered baguette shape, light blue grey color and great clarity.

About Heat Treatments: Some colored gemstones are routinely heated for color and clarity improvement. This is a permanent treatment and typically only involves heat and not chemicals. The treatment mimics what the earth does naturally to gemstones as they reach the surface. If the stone says "Unheated," it is not treated in any way.