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!

1.60CT COLOR CHANGE SQUARE RADIANT TANZANIAN SAPPHIRE, TEAL TO PURPLE GREY, 6.39X6.21MM. This sapphire is totally natural/untreated and features a gorgeous square radiant cut and natural color-shifting properties which allow the

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.