Heated only! 3.47ct top blue sapphire set

This 75 piece collection of sapphires exhibits rich sapphire blue and ink blue hues, and are well matched, measuring about 1.9mm each. They were heated only, with no dyes or fillers, and have a Mohs hardness rating of 9 out of 10. These gems were sourced from Africa, and present glistening lusters.