Gorgeous Edwardian 9ct (375)Solid Gold & Pink Amethyst Bar Brooch – English Hallmarks 3 Grams. This solid gold 9ct -375 jewellery Antique brooch in exellent original condition polished with English hallmarks see photos. See photos for the best guide to condition. Size ; 60mm length x 10mm high x 7mm wide approx. A great addition to any antique jewellery collection or gift for someone special. Track Page Views With.