10-karat rose gold. Faceted prong, shared prong-set diamonds = approximately 0.17 ct. Tw. Colour = G-H. Morganite gemstones = approximately 0.55 ct. Tw. Put (the right) Ring on It: Size Guide. Ring can be re-sized by any professional jeweler; however, if re-sized, it will not be accepted for return. It is customary to treat most gemstones to achieve enhanced colour and durability. Some of these treatments may not be permanent, and may require special care.