A diamond and platinum ring. Photo Freemans centering a marquise-cut diamond, weighing: 7.73 carats; in a pavé-diamond split shank mounting and surround; remaining diamond weight approximately: 2.55 carats. Ring size: 4 1/2 (with sizing beads), 11.4 dwt....

An impressive diamond and platinum ring. Photo Freemans centering one rectangular step-cut diamond; weighing: 11.71 carats, in four split prongs, flanked by tapered baguette-cut diamonds. Ring size: 6 1/2 (with sizer), 6.2 dwt. Estimate $150,000-250,000...

Victorian Gold Bangle with Pearl and Enamel Accents. England. Circa 1880. Photo courtesy Kentshire An antique gold buckle bangle bracelet with half pearl and blue enamel decoration, in 15k. Edwardian Diamond and Platinum Ring. Circa 1915. Photo courtesy...