Oscietra caviar comes from the Russian Sturgeon (an ancient species originally native to the Black Sea, the Caspian Sea and the Azov Sea). It is a medium size fish that can weight from 44 to 110 lbs (50 Kg), providing a poppy and slightly nutty caviar with colouring that ranges from dark brown to beige. Many consider this to be the most refined caviar. Its eggs are large sized (between 2.7 and 3.2 millimeters). On average it takes between 9 and 13 years before getting this precious type of caviar.