Gem 1203 - Parabia Type Tourmaline - 1.73 ct. This is a stone from a parcel of Paraiba Type tourmaline from Nigeria. Now I have not had any of these tested, so I'm really selling just at a plain tourmaline price. The do have a quite intense blue/green color. This one I cut in an opposed bar design. The stone measures 6.7 mm sq. This stone has been heated.