Gold Plated Silver Hoops with CZ CrossCZ Cross Hoop Earrings These hoop style earrings are crafted from solid sterling silver and plated with a layer of gold for a yellow gold finish. A small cross charm is suspended from each hoop, designed to hang just below the earlobe. The core material of sterling silver, an alloy containing 92. 5% pure silver, provides a durable base for the design. Each cross charm is then carefully embellished with a series of clear cubic zirconia stones.