With its simplistic design of concentric circles linked together, the nexus necklace will become a favorite part of your everyday wardrobe! Sterling silver circles, accented with 14K gold filled rings then combined in various sizes create an attractive centerpiece that hangs from a 14K gold- filled cable chain. Largest circle has a 15mm diameter. Please choose your size preference of 16, 18 or 20 inches. Sterling silver and 14K gold-filled.