MOST EXPENSIVE CHAMPAGNE: Goût de Diamants, designed by Alexander Amosu – $1,800,000 No matter how trivial, for every little thing that you use in your everyday life, there is someone out there who owns or is making the most expensive version of it. We’re talking gold- and diamond-encrusted TVs and mobile phones, billion-dollar homes, rings that’ll give you back problems, fine art couture and a boat that is decorated with the bones of a T-rex.