The Imperial Crown of Russia, also known as the Great Imperial Crown , was used by the monarchs of Russia from 1762 until the Russian monarchy's abolition in 1917. The Great Imperial Crown was first used in a coronation by Catherine the Great, and it was last worn at the coronation of Nicholas II. It was displayed prominently next to Nicholas II on a cushion at the State Opening of the Russian Duma inside the Winter Palace in St. Petersburg in 1906. It survived the 1917 revolution and is currently on display in Moscow at the Kremlin Armoury's State Diamond Fund.