In comparison to the more delicate Beluga pearls, the roe of Osietra sturgeons are smaller, firmer and can range in colour from shimmering golden hues to varying shades of brown. This succulent Caviar also provides consumers with a complex array of rich flavours.
Ossetra (also Oscietra, Osetra, or Asetra) Caviar is one of the most prized and expensive types of Caviar  (eclipsed in price only by Beluga caviar). It is obtained from the Ossetra sturgeon which weighs 50-400 pounds and can live up to 50 years.
Ossetra caviar varies in colour from deep brown to gold. Lighter varieties are more sought after, as they have a rich flavour and come from the oldest of sturgeon. Golden Ossetra is a rare form of Ossetra Caviar and is golden-yellow in colour with an intense flavour.
The word Ossetra is the transcription of the genitive case form "осетра" (osetra, 'of sturgeon') of the Russian name "осётр" (osyotr 'sturgeon') from the phrase икра осетра (ikra osetra, 'caviar of sturgeon'). At one time, the term "ossetra" simply referred to Russian sturgeon species harvested for this type of Caviar.