Brand new book locket necklace Material: 18K gold filled Lobster clasp closure Length: 20' figaro chain Pendant measurements: 1.3'H 0.6'W gold filled is a beautiful more affordable alternative to solid gold as it is a genuine layer of gold permanently bonded onto base metal with heat and pressure that contains 100+ times more gold than gold plated. It is extremely durable, wont chip flake or tarnish