This loose stone is available for a custom ring by Anueva Jewelry. Select your stone first and then . Add both to your cart and we'll create your ring!

3.84CT UNTREATED EMERALD CUT MONTANA SAPPHIRE, LIGHT GREENISH BLUE AQUA, 8.60X7X5.94MM. This sapphire was mined in Montana and has natural inclusions, typical of a stone from the region. Very rare, larger size! It is totally natural, untreated. Will appear more green indoors and more blue in natural light.

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.