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The central bank, one of the world's largest holders of bullion, has been regularly buying gold amid weaker oil prices and Western sanctions imposed over Moscow's role in the Ukraine crisis.
Russia's gold reserves rose to 54.0 million troy ounces at the start of April from 53.2 million ounces as of March 1, the central bank said on Thursday.
The value of its holdings rose to $67.57 billion from $66.86 billion as of March 1.
Russia's central bank, which usually buys locally produced gold from Russian banks, has been one of the leading national buyers of gold in recent years, along with China.