A late 19th century gold, coral and lapis lazuli bangle

A late 19th century gold, coral and lapis lazuli bangle
Of hinged design with applied grape vine decoration, each half-hoop with central circular cabochon coral, corallium rubrum, or lapis lazuli in claw mounts with with ropework surrounds, with glazed reverses, circa 1870, inner diameter 5.5cm