Jewellery, Watches and Objects of Vertu

A tanzanite ring by Leo De Vroomen, 2014, the heavy gold ring mount collet set with a sugarloaf cabochon-cut tanzanite, to a slightly tapered band, signed ‘de Vroomen’ and with maker’s mark ‘L.D.V’, mounted in 18ct gold, London hallmark, ring size N (sizing beads). £1,000-£1,500