Gold, platinum, emerald, pearl and diamond brooch, Marcus & Co. Photo Sotheby's Designed as a heart composed of scrollwork motifs, centering a round emerald weighing 2.82 carats, accented by two old European-cut diamonds weighing approximately 2.00 carats,...

Platinum, emerald and diamond ring. Photo courtesy Sotheby's Centered by a round emerald weighing 12.08 carats, framed by marquise and pear-shaped diamonds weighing approximately 2.75 carats, size 5¾, fitted with inner sizing band. Lot. Vendu 293,000...