precious metals and their alloys sold in bulk; namely, gold, silver and platinum; precious and semi-precious alloys thereof; precious and semi-precious stones; namely, diamonds, pearls and agates; and jewelry made of precious metals and their alloys and with precious and simi-precious stones; namely, amulets, bracelets, brooches, belt buckles, chains, charms, cufflinks, earrings, medallioins, medals, necklaces, pins, rings and tie pins