13 avril 2012
18 karat gold, citrine, smokey quartz clip-brooch, Herz Belperron, circa 1935
18 karat gold, citrine, smokey quartz clip-brooch, Herz Belperron, circa 1935; Photo Sotheby's Set in the center with a large oval citrine, framed by a tiered block of smokey quartz, maker's mark for Groëné et Darde, French assay marks. With fitted and...