Perriet joet champagne

[xiochitl]

Thank you all in advance for helping me again. My dughter receive a bottle of fleur de champagne perrier joet 1985 about ten years ago as a wedding present. She has been saving it for a special day, its her tenth wedding aniversary this year so she its ready to open that special bottle of champagne that she is been saving fo so long. Is it still good?. Also does anyone know how much it will cost to replace it. I will like to buy her another one for her aniversary