Cathy Waterman's oval-link chain necklace is crafted of polished platinum and finished with a hammered toggle clasp. A signature design of the California-based jeweler, this delicate piece can be worn alone or layered with other necklaces. Polished, hammered platinum. 15.5 length (approximately). Toggle clasp. Cathy Waterman Women's Platinum Oval-Link Chain Necklace A great designer gift. Shop Cathy Waterman at Barneys New York.