perrier jouet champagne

[xiochitl]

My daughter received a bottle of fleur de champagne perrier jouet 1985 as a wedding gift 10 years ago. Her aniversary its coming up and she has been saving this bottle of champagne for a special ocasion, she would like to know if its still ok to drink. Also I will to get her a bottle of same 1985 campagne as a anniverary gift, how much should I expect to pay for it. thank you