23 avril 2012
A Sapphire and Diamond Ring, Mounted by Boucheron
A Sapphire and Diamond Ring, Mounted by Boucheron. Photo: Christie's Images Ltd 2012 Set with a rectangular-cut sapphire, weighing approximately 31.21 carats, to the tapered baguette-cut diamond shoulders, ring size 5 with ring sizer, with French assay...