This sphene displays stunning brilliance. The gemstone features “fire” phenomena which is a special feature of Sphene. In one direction the gem displays a canary yellow colour, in the other direction the gem jumps to life with flashes of green “fire”. This gem is brilliantly cut by a skilled cutter. Sphene, also called titanite for its titanium content, is a fairly unusual gemstone that until a very few years ago was virtually unknown to most jewelry consumers. Sphene is a rare collector stone with an unusually high refractive index and and a hardness of 5 -5.5. Because of it’s high dispersion and refractive index, a well cut sphene can display stunning brilliance.