Tourmaline and diamond ring, of cluster design centring a cushion-shaped green tourmaline weighing 4.51 carats within a brilliant-cut diamond surround above similarly set shoulders, the small diamonds together weighing approximately 0.87 carats, mounted in 18ct white gold, size M1/2. Accompanied by a GSL report numbered AA52197/1, dated 3 October 2013, stating that the 4.51 carat gemstone is natural green tourmaline