Precious metals and their alloys and goods of precious metals or coated therewith, not included in other classes; opal gemstones and associated jewellery products; diamonds and precious and semi-precious stones; jewellery, including earrings, rings, bracelets, charms, necklaces, pendants, cuff links, pins and brooches; key rings; decorative stones; trinkets and works of art of precious metal and incorporating opal gemstones