The Hope diamond in it's 1910 Cartier setting, surrounded by pear and cushion shaped diamonds. New research shows a high level of boron is responsible for the bright blue color of this stunning carat beauty.
A TOURMALINE AND DIAMOND RING, BY TIFFANY & CO. Set with a pear-shaped 'Paraiba' tourmaline, weighing approximately 6.78 carats, within a circular-cut diamond surround, to the circular-cut diamond bifurcated shoulders, mounted in platinum Signed Tiffany & Co.
EMERALD AND DIAMOND RING, FRENCH, CIRCA 1920. Set with a cushion antique modified step-cut emerald weighing approximately 3.80 carats, bordered vertically by 2 pear-shaped diamonds weighing approximately 2.50 carats, the shoulders set with 8 old European-cut diamonds weighing approximately .40 carat, mounted in platinum, size 6 ½, French assay mark.