18ct white gold and diamond 'Diadea' ring, Cartier, composed of en tremblant marquise-shaped and round cases, each containing round brilliant-cut diamonds extended to the gallery, the diamonds together weighing approximately 1.10 carats, size J12/43, signed Cartier, numbered 15320B, maker's mark 'Pb', with French assay mark. Accompanied by a Cartier certificate of authenticity numbered 227592, dated 23 December 2005.