Silver-topped gold, emerald and diamond necklace, fisrt quarter 19th century. Photo Sotheby's Designed as a graduated line of emerald-cut and cushion-shaped emeralds, framed by old mine diamonds, alternating with floral motif plaques set with cushion-shaped...

Platinum, sapphire and diamond pendant-necklace, Lacloche Frères, France, circa 1925. Photo Sotheby' The articulated pendant designed as a cascade of marquise-shaped diamonds weighing approximately 5.15 carats, set in the center with an emerald-cut sapphire...

Platinum and diamond necklace. Photo Sotheby's Of graduated fringe design centered by a pear-shaped diamond weighing 5.20 carats, flanked by 6 pear-shaped diamonds weighing 16.43 carats, further set with smaller pearshaped diamonds weighing approximately...

18 karat two-colour gold, emerald and diamond necklace. Photo Sotheby's Of graduated design supporting pendants set with pear-shaped emeralds, the center emerald weighing 42.64 carats, the flanking emeralds weighing approximately 93.75 carats, set throughout...