Glittering 2.45ct rainbow spark Sphene

This is such a great gemstone. It has a color shifting hue that moves between yellow and green with vivid saturation. It exhibits smoldering flashing that reflects its color palette, and in bright light you can observe flashes of red and green. It measures 9.8mm x 6.2mm x 4mm, and is covered with a diamond grade superior luster. Unheated. Sourced from Russia.