ART DECO STYLE SILVER-ON-YELLOW GOLD, DIAMOND, SAPPHIRE AND AQUAMARINE PENDANT NECKLACE. Emerald-cut aquamarine weighing app. 12.00 ct. centered by eight matched square-cut sapphires in geometric design pendant suspended from flexible chain of round and navette shape links; pendant and chain set with numerous round diamonds - L: 20 in. Estimate $3,500-5,000