Necklace Collection :
Empress Maria Feodorovna's Sapphire Necklace. a very elaborate piece consisting of sapphires of varying sizes and shapes, and diamonds all set in gold frame. The largest sapphire weighed 159.25 carats. In addition, there were 15 other sapphires with a combine weight of 150 carats. The necklace also was set with 414 diamonds. The centrepiece sapphire pendant as well as the diamond rivieres on both the upper and lower parts could be removed and be worn separately.