The Bismark Sapphire Necklace
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Photo by Chip ClarkThe 98.6-carat deep blue sapphire in a diamond and platinum necklace was designed by Cartier and was found in Sri Lanka. The piece was a gift to the Smithsonian Institute by Countess Mona von Bismark in 1967.
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Photo by Dane Penland
@http://famousdiamonds.tripod.com/