Beluga and Osetra seem to pair well according to the google! Since " The House of Caviar" is close by and no one in the Eastern European market we bought them at spoke English and I don't speak Russian, that seems to be the safest bet. Just like the Chinese/Asian market we go to, where many things look interesting, but are not labeled in English, we have no clue. If we get lucky, a customer that speaks English will help us out. When looking for the ingredients for the Poke and Dashi, we were lucky enough to have a customer help.