A sapphire and diamond brooch, early 20th century, and pair of diamond earrings, the brooch of bar

A sapphire and diamond brooch, early 20th century, and pair of diamond earrings, the brooch of bar design set with a circular-cut sapphire and diamond, mounted in gold, length 5cm, case; and a pair of stud earrings of spiral design, set with brilliant-cut diamonds, the centres suspending a drilled brilliant-cut diamond, mounted in 18ct white gold, length 1cm each, post fittings, British hallmarks, case