Sapphire 0.91 ct tanzanite An amazing color-shifting

An amazing color-shifting

An unheated blue sapphire with minor green secondary tones from Madagascar

bright spinel from small-scale mining in Luc Yen

cut into a contemporary brilliant oval

cut into a brilliant round

Sapphire 0.91 ct tanzanite An amazing color-shiftingA beautiful pinkish sapphire sourced from small scale mining in Madagascar. The rough was purchased as unheated at the mine, but it has not yet been submitted to the lab. Over 90% of these rough pieces are unheated, though sometimes miners heat the rough directly at the mine. For this reason, we offer this sapphire as heated (even though it is very likely unheated) until it is verified by our lab. We will update the treatment status in approximately