An aquamarine and diamond pendent necklace, of Art Deco inspiration, the shield-shaped openwork plaque set throughout with round brilliant-cut diamonds and baguette-cut diamond accents, centring a drop-shaped aquamarine weighing 11.85 carats, the pendant suspended from a diamond-set line of foliate decoration, the neckchain set with round brilliant-cut diamond collets, diamonds approximately 4.90 carats total, mounted in 18 carat white gold, inner circumference 42.0 cm, pendant length 9.5 cm