Puzzle Necklace with Paua Shell Inlay (2cm Charm & 45cm Chain) Showcasing genuine New Zealand Paua shell (the world's most colourful shell) this Puzzle Necklace features a reversible heart design allowing you to wear either the heart detail or full Paua side facing forward. Available in silver or gold colour and supplied on an 45cm cable chain. Material: Zinc charm with brass chain plated in rhodium/gold colour.