Sapphire with asterism 13.31 ct

Asterism is an interesting effect that is rare in natural sapphires. It manifests itself incorrectly oriented crystals, cut in the form of a cabochon, only when a ray of light hits the surface of the stone, in the form of a beautiful six-pointed star. Sapphire with asterism will adorn any gemological collection, it has a noble black color and a good start, it is valuable that it has not been refined. Such stones are chosen for creating jewelry by lovers of rare natural gems, both men and women .–>