Platinum and Diamond Pendant/Brooch: Platinum and Diamond Pendant/Brooch. centering a bezel-set old European-cut diamond weighing 0. 45 ct. surmounted with rose- and full-cut diamonds within an open-work setting suspending a pear-shape diamond-set drop; suspended from a platinum chain; 7. 06 dwts. ; pendant lg. 2 1/4 in. ; chain...