17 avril 2008
An onyx, coral, diamond and emerald penannular brooch, by Cartier, circa 1925
An onyx, coral, diamond and emerald penannular brooch, by Cartier, circa 1925 The open-ended polished onyx hoop, terminating in two carved coral chimerae, each embellished with single-cut diamond collar and mane and grasping an emerald bead within its...