2 mai 2014
Sapphire and diamond ring, M. Gérard, 1970s
Sapphire and diamond ring, M. Gérard, 1970s. Photo Sotheby's. The cabochon sapphire weighing 22.40 carats, framed with brilliant-cut diamonds, the shoulders set with similarly cut stones, size 51, signed M. Gérard, numbered, French assay and maker's marks,...