Paraiba type tourmaline and diamond ring, the blue green tourmaline weighing 20.53 carats is claw set surrounded by two tiers of baguette and round brilliant cut diamonds together weighing approximately 1.65 carats, mounted in 18ct white gold, size O. Accompanied by a Git certificate numbered 09.02.13.00796, dated 17 February 2009, stating that the 20.