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 metals, metals clad with precious metal, and articles thereof; imitation jewellery; coin 71 03 Precious stones (other than diamonds)and semi-precious stones, whether or notworked or graded but not strung, mountedor set; ungraded precious stones (otherthan diamonds) and semi-precious stones,temporarily strung for convenience oftransport. Commodity Code Description 71 03 10 Unworked or simply sawn or roughly shaped 71 03 91 Rubies, sapphires and emeralds 71 03 99 Other