Each piece is designed to be worn on its own, matched with other pieces from the collection, or layered together for a statement look. Size: Y-Necklace length: 15" (38.4 cm) + 3.25" (8 cm) extension chain. Choker length: 14.3" (36.4 cm) + 3.25" (8 cm) extension chain. Earring: 4.5 cm / 9 grams. Material: Gold-plated copper, lab cubic zirconia