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 05 Dust and powder of natural or synthetic precious or semiprecious stones. Commodity Code Description 71 05 10 71 05 90