Jewellery articles and parts thereof, of precious metal or of metal clad with precious metal

711311 Jewellery; of silver, whether or not plated or clad with other precious metal, and parts thereof 711319 Jewellery; of precious metal (excluding silver) whether or not plated or clad with precious metal, and parts thereof 711320 Jewellery; of base metal clad with precious metal, and parts thereof