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 11 Base metals, silver or gold, clad with platinum, not further worked than semi-ma 71 11 00 Commodity Code Description 71 11 00 00