Ippolita 18K Yellow Gold Nova Cluster Pendant Necklace in Riviera Sky. This necklace is part of the Nova collection, inspired by the planets and stars. From a fine 18K gold chain hang six charms in different colors, each with its own gold bail: planets tracing their own orbits. The semiprecious stones in this necklace include turquoise, African Ruby, cultured freshwater pearl, and lapis. Length: 30″.