A tanzanite and diamond oval plaque cluster ring, 18ct white gold, made as a curved oval cluster set with central oval, tanzanite of strong medium blue colour, weighing approximately 1.08ct, framed, at four points with single bezel set diamonds, connected by grain set rails, of smaller diamonds, totalling throughout approximately 0.50ct, completed, with a final outer channel set rail of small sapphires, merging to a smooth, band. Valuation on request.