A nice sized London Blue Topaz Pear Shaped Briolette drops from a cluster of Aquamarine, London Blue, and Swiss Blue Topaz Roundels. London Blue Topaz is such a unique color so rich and vibrant. This necklace is casual and elegant and so wearable. The drop hangs beneath a vermeil toggle ( 18 karat gold-filled matte over sterling silver) with two 14 karat gold-filled satellite chains. Necklace measures 18 1/3" . Pendant measures just over an inch including the cluster but not the toggle.