It is harvested from a variety of critically endangered sturgeon fish species, that are known for their small, grey colored eggs.
It is native to the Black, Azov, Caspian and Aegean Sea basins although it has been extirpated throughout most of its range.
Because the Stellate sturgeon was once the most common and fastest to reproduce, this made Sevruga caviar the most commonly found of the sturgeon caviars, and the most inexpensive of the three main types of sturgeon caviar - Beluga, Osetra and Sevruga.
Sevruga caviar eggs are a pearlescent grey, and smaller in size than other sturgeon.
The flavor is more pronounced than other varieties, often described as saltier, but it can vary depending on the origin of the fish.