18ct white gold, opal and diamond ring, of cluster design centring a black opal weighing 4.46 carats claw-set within an undulating border of tapered baguette and round brilliant-cut diamonds together weighing approximately 0.90 carats, size K. Accompanied by GSL report numbered AA55294/3, dated 29 June 2015, stating that the 4.46 carat gemstone is natural, variety Black (N1), of Lightning Ridge, NSW origin.