Section 14 Natural or cultured pearls, precious or semi-precious stones, precious metals, metals clad with precious metal and articles thereof; imitation jewellery; coin 71 Natural or cultured pearls, precious or semi-precious stones, precious met Jewellery; Co 71 02 Diamonds, whether or not worked, but not mounted or set 71 02 21 - - Unworked or simply sawn, cleaved or bruted Commodity Code Description 71 02 21 00 - - Unworked or simply sawn, cleaved or bruted