Freshwater Pearl Cluster Earrings. You will definitely make a statement with these sparkly cluster earrings. Opals, London Blue Topaz and small Keshi Pearls adorn these 11 mm Cultured Freshwater Pearls. Huggie style earwires for a nice fit and note that the cluster drop can be removed. Wear the Earwires on its own or simply add a drop of your choice.