This is a fantastic and very rare natural color-change sapphire from a brand new mine in Mozambique. The color changes from a very attractive copper-orange under natural light to vivid padparadscha orange-pink under incandescent light. The stone has some beautiful rainbow inclusions that give it a schiller effect similar to sunstone. This is the first time that I have ever seen this in sapphire. The stone is also well cut and has excellent brilliance. It is also completely untreated/unheated. All in all a wonderful stone that will make a gorgeous piece of jewelry.