Caviar wars as top brands accused of implying they are Russian when they are made in China Producers are calling for a crackdown so the tin is clearly marked with species and country of origin There is a dispute about how caviar tins are named Britain’s top caviar suppliers are calling for a crackdown on labelling to stop suppliers duping customers into thinking they are buying genuine Russian or Iranian Beluga. A brand sold in Harvey Nicholls has been accused by UK-based caviar supplier Caspian Monarque, which sells Iranian beluga, of trying to portray that its own-brand tins are filled with sturgeon eggs from Russia.