18ct white gold and diamond 'Hypnose' ring, Cartier, circa 2009, centring an oval plaque pave-set with brilliant-cut diamonds framed by a similarly set elliptical hoop, between blackened gold surrounds, further framed by a pave-set diamond border to diamond set split shoulders, size 53 (N), signed Cartier, French maker's mark, numbered 33664C. Accompanied by a Cartier certificate and purchase invoice.