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 HATURAL OR CULTURED PEARLS, PRECIOUS OR SEMI-PRECIOUS STONES, PRECIOUSMETALS, METALS CLAD WITH PRECIOUS METAL, AND ARTICLES THEREOF; IMITATIONLEWELLERY; COIN 71 02 DIAMONDS, WHETHER OR NOT WORKED, BUT NOT MOUNTED OR SET. 71 02 21 INDUSTRIAL DIAMONDS UNWORKED OR SIMPLY SAWN, CLEAVED OR BRUTED Commodity Code Description 71 02 21 00 INDUSTRIAL DIAMONDS UNWORKED OR SIMPLY SAWN, CLEAVED OR BRUTED