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 04 RECONSTRUCTED PRECIOUS OR SEMI-PRECIOUS STONES, TEMPORARILY STRUNG FOR 71 04 20 OTHER SYNTHETIC OR RECONSTRUCTED PRECIOUS/SEMI-PRECIOUS STONE, UNWORKED... Commodity Code Description 71 04 20 00 OTHER SYNTHETIC OR RECONSTRUCTED PRECIOUS/SEMI-PRECIOUS STONE, UNWORKED...