Platinum, Diamond, and Aquamarine Pendant, the delicate platinum and pearl festoon chain centering a gem-set openwork plaque suspending a pear shape aquamarine measuring approx. 16.40 x 8.20 x 6.70 mm, framed by old European-cut diamonds, approx. total wt. 1.05 cts., platinum-topped 18kt gold mount, lg. 17 in.