Russian Empire
Though the Empire was only officially proclaimed by Tsar Peter I following the Treaty of Nystad (1721), some historians would argue that it was truly born either when Ivan III of Russia conquered Veliky Novgorod in 1478, or when Ivan the Terrible conquered the Khanate of Kazan in 1552. According to another point of view, the term "Tsardom", which was used after the coronation of Ivan IV in 1547, was already a contemporary Russian word for empire.
Imperial Crown of Russia
In 1719, Tsar Peter I the Great founded the earliest version of what is now known as the Russian Federation's State Diamond Fund. Peter had visited other European nations, and introduced many innovations to Russia, one of which was the creation of a permanent fund (фонд) to house a collection of jewels which belonged not to the Romanov family, but to the Russian State. Peter placed all of the regalia in this fund and declared that the state holdings were inviolate, and could not be altered, sold, or given away—and he also decreed that each subsequent Emperor or Empress should leave a certain number of pieces acquired during their reign to the State, for the permanent glory of the Russian Empire.