A stunning Columbian emerald and diamond pendant on chain, 18ct yellow and white gold, made as a stunning square cluster set with, central Columbian square emerald cut emerald of intense vivid green, weighing, approximately 5.00ct, claw set in yellow gold, framed to top by three, marquise cut diamonds in radiating arrangement, a single further marquise to, lower point of cluster, connected by smaller brilliant cuts to sides, ten in total, concealed bail to reverse, suspended from two tone twist chain