IoliteIoliteTanzaniaIolite is the gem variety of the mineral Cordierite. It is frequently confused with sapphire due to its rich blue hue. Usually the pleochroism is very pronounced in iolite and three different colors can be seen in the same stone. In viewing an iolite stone, the colors violet blue, gray and a lighter blue can be seen depending on the angle of sight. The present cushion-cut iolite has a deep violet hue and good luster. Of suitable size for mounting as a ring. Weighing approximately 7.13 carats and measuring 14.22 x 12.37 x 7.58mm None