- Sourced from Italy - Our finest grade of caviar - High in Omega-3  The Fish Society Caviar Number 3 is produced by crossing a baerii or Siberian sturgeon with the larger huso or beluga sturgeon. Like Numbers 1 and 2, it’s from their longstanding Italian suppliers. It’s a valuable hybrid that’s almost as good as beluga. All this caviar is fresh. Best before dates are set very conservatively. Your caviar will be very good for at least a month after these dates.