A 1766 pattern rouble depicting the bust of Catherine II came under the hammer at a numismatic auction in New York for $936,000.
The rare coin, which was issued only in three copies, was bought by an anonymous Russian collector by phone.
Coins from the days of the Russian Empire have caused quite a stir within numismatic circles.
A 1876 gold coin worth 25 roubles sold for $210,600 and a 1736 silver rouble with the portrait of Empress Anna Ioanovna was snapped up for nearly $94,000.
© TASS. 9 January, 2012