A Victorian gold onyx and split pearl brooch

A Victorian gold onyx and split pearl brooch, with an elongated oval cabochon onyx, rub set, with an applied star collet grain set with split pearls, to milled plaited wire border, with glazed locket verso, pin and 'C' catch, tested as approximately 15ct gold with 9ct gold pin, 42 x 16mm, 8.45g, together with a silver and gold chimney sweep charm, the silver chimney sweep with gold ladder and jump ring, tested as approximately silver and 9ct gold, 4.34g (2)