Gorgeous .50 carat marquis Yogo sapphire with .30 carat diamonds in 14 karat white gold, size 7.
Yogo sapphires are usually cornflower blue and are found only in Yogo Gulch, Montana. They are not heat treated and are sought out for uniform clarity and freedom of cavities and inclusions.
Sapphires are the official gemstone of the state of Montana.