Jewellery, Watches, Silver and Objects of Vertu

An early 20th century ruby, pearl and diamond stick pin, the cushion-shaped terminal set with a quatrefoil of old brilliant-cut diamonds and calibré-cut rubies, spaced by rose-cut diamond highlights and centred with a bouton-shaped pearl, to a white enamel border, mounted in gold, (pearl untested), cased by Skinner & Co., length 7cm. £300-£400