The Romanov sapphire will be offered for auction at Sotheby's in Geneva The auction will take place on November 11, the "Independent" reports. The stone weighing 197.8 carats is sold as part of a Cartier bracelet, worth 850 thousand - 1.7 million Swiss francs. It is not known when the stone itself entered the treasury of the Russian crown, but its cut indicates that it was created in the Mughal period. It was worn by Empress Dowager Maria Feodorovna at a ball at the Winter Palace in 1903. This ball is considered the last great celebration in Imperial Russia. After the revolution, the sapphire came to be sold by an estate, then it was owned by the opera singer Gana Walska, and later it came to Cartier.: Sotheby's We are telegraphing to you - about maximum culture.