The Marie-Antoinette Blue Diamond: Marie-Antoinette’s private jewelry collection contained a 5.64 carat blue heart shaped diamond which the queen had set in a ring. The queen gave the ring to her close friend Princess Lobomirska, shortly before her trail in 1791. After the Polish princess died her estate was passed to her four daughters. The diamond became the property of Count Wladimir Potocki through his marriage to one of the daughters. The blue diamond was displayed at a number of prestigious exhibitions throughout the 19th century. In 1967 it was sold to a private collector at the Palais Galliera in Paris, and in 1983 it came up for auction at Christie’s in Geneva. It belongs to a private collector in Europe and is not on displayed to the public.
Marie-Antoinette's ear-drops, Smithsonian's National Museum of Natural History. lady reading/marieantoinette