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 03 Precious stones (other than diamonds) and semi-precious stones, whether or not w 71 03 10 71 03 10 00 Commodity Code Description 71 03 10 00 00 - Unworked or simply sawn or roughly shaped 71 03 91 00 00 -- Rubies, sapphires and emeralds 71 03 99 00 00 -- Other