The customs officials have seized over 300 diamonds from an Armenian citizen at the Sochi airport. As the South Customs department of Russia press service has reported to "RIA-Novosti", the customs officials found the diamonds in the bag of the passenger of the flight from Yerevan to Sochi. The cost of the seized diamonds will be evaluated after examinations. The man was detained. The decision on bringing the action against the Armenian citizen for trafficking of precious jewels and precious metals is made.