Yogo sapphires are unique because they do not have silk so are a pure, uniform blue when mined. They do not require heating to improve clarity and to remove color zones. Species: 4 YOGO Montana Sapphires Locality: YOGO, Montana, USA.
30 Genuine YOGO Montana Sapphires Brilliant Cut Rounds 1.00+ct Ranging 1.9-2.0mm
(Average 0.033+ct. each). Fine brilliant machine cut with super fine polish (50,000 grit diamond polish). Very fine quality. Species: 30 YOGO Montana Sapphires Locality: YOGO, Montana, USA. Yogo sapphires are unique because they do not have silk so are a pure, uniform blue when mined.