Fine Tanzanite eye clean heart, weighing 7.28 cts from Tanzania. Tanzanite is the trade name given by the gemmologists at Tiffany & Co to the transparent violet-blue variety of Zoisite, the mineral which was described by Abraham Gottlob Werner in 1805. Tanzanite is generally enhanced by heat unless otherwise specified.Surprisingly, it is the dark brown crystals that produce the most valuable dark blue stones after heating.
feels that this is one of the rarest gemstones to ever come out of Mozambique. It has the power to move me when bright diffused natural light illuminates the gemstone. It tends to loose saturation in incandescent light, but it is still purple with purple flash.