(Reuters) – The Russian central bank will restart buying gold from banks and will pay a fixed price of 5,000 roubles ($52) per gramme between March 28 and June 30, the bank said on Friday. The central bank, which suspended gold purchases from banks in mid-March to meet increased demand for the precious metal from households, said the resumption of buying would help ensure sustainable supply and the uninterrupted functioning of gold producers. ($1 = 96.25 roubles) (Reporting by Reuters; Editing by Alex Richardson)