Section 14 NATURAL OR CULTURED PEARLS, PRECIOUS OR SEMI-PRECIOUS STONES, PRECIOUS METALS, METALS CLAD WITH PRECIOUS METAL, AND ARTICLES THEREOF; IMITAT ION JEWELLERY; COIN 71 Natural or cultured pearls, precious or semi-precious stones, precious metals, m 71 13 Articles of jewellery and parts thereof, of precious metal or of metal clad with 71 13 11 Chain of precious metal 71 13 11 20 Chain of precious metal Commodity Code Description 71 13 11 20 00 Chain of precious metal