Silky! 4.20ct midnight blue Sapphire

This fantastic sapphire measures 11.2mm x 9mm x 4.7mm, and has a beautiful visual presence. The color of this piece is eye catching with its rich midnight blue hue and strong saturation set under a superior mirror quality luster. This gem was sourced from Ethiopia and has a Mohs hardness rating of 9 out of 10. This example was heat treated, evident by the presence of lead bearing glass.