An emerald and diamond dress ring, by Charles Rose Jewellers, designed as a square step-cut emerald, weighing 2.93 carats, set within a baguette-cut diamond surround, the shoulders each mounted with four baguette-cut diamonds, to the plain half-hoop, with maker's mark 'CR' for Charles Rose Jewellers, diamonds approximately 1.63 carats total, mounted in 18 carat white gold, ring size L 1/2. Accompanied by a report from the Gem Studies Laboratory (GSL) stating that the emerald is of Colombian origin. Report number AAS53002/2, dated April 1 2014.