An important sapphire and diamond bracelet, by Mouawad. Photo: Christie's Images Ltd., 2010 Of flexible design, the bracelet mounted with a sugarloaf cabochon sapphire weighing 180.86 carats, set within an emerald-cut diamond demi-surround to the tapered...

An emerald and diamond ring, by Mouawad. Photo: Christie's Images Ltd. 2009 The rectangular-shaped emerald weighing 31.51 carats to the triangular-shaped diamond shoulders and plain hoop, in maker's case. Signed Mouawad - Est. $100,000 - $130,000 Accompanied...