Tanzanite and diamond ring the cushion-cut tanzanite weighing 8.01 carats claw-set between split shoulders highlighted with brilliant-cut diamonds, mounted in 18ct white gold, size M. Accompanied by a GIA report numbered 6132323869, dated 10 May 2012 stating variety as tanzanite. Tanzanite is commonly heated to improve or change colour. Colour origin of this stone is currently undeterminable.