A sapphire and diamond bangle, early 20th century, centring on a line of five cabochon sapphires
A sapphire and diamond bangle, early 20th century, centring on a line of five cabochon sapphires spaced by circular-cut diamonds, mounted in gold, to a hinged gold bangle of knife edge design, inner circumference approximately 17cm, Russian assay marks for 14ct gold, St Peterburg marks, and maker's mark BK