1 mars 2012
Sapphire and diamond ring, René Boivin, 1960s
Sapphire and diamond ring, René Boivin, 1960s. Photo Sotheby's The heart-shaped sapphire collet-set within a frame of baguette diamonds, size L, signed René Boivin, French assay and maker's marks. Estimate 8,500-12,500 GBP Property of a lady Sotheby's....