This is an antique 10ct matte yellow gold baby locket. This locket is hallmarked 10k on the inside panel. It is in excellent condition apart from a very small ding on the bottom of one side of the locket. The locket opens with eases and closes securely. It measures roughly 12mm in diameter. The locket comes on a new hallmarked 10k 16in yellow gold trace chain. The locket has an inside panel that can easily hold a small photo or lock of hair. It is lightweight and easy to wear.