BLUE WORK

Earrings; badges of precious metal; bonnet pins of precious metal; tie clips; tie pins; necklaces; bracelets; pendants; gem brooches; medals; rings; medallions; cuff links; key rings; clocks and watches; unwrought precious stones; emerald; threads of precious metal; chalcedony; sapphire; coral jewellery; pearls; artificial gemstones; rock crystal jewellery; diamond; opal; jade jewellery; jasper being quartz jewellery; agate and sardonyx jewellery; ruby; gold and its alloys; silver and its alloys; platinum and its alloys