Ritzy Charters have revealed a list of the 10 most expensive yachts afloat — and the top three are worth a whopping $1.29 billion combined, exceeding the GDP of some smaller countries.“Luxury yachts are more than just a symbol of wealth; they not only provide incredibly gorgeous views but a level of privacy to those onboard who want a sense of relaxation that you can’t get from anywhere other than chartering across oceans,” a spokesperson for the company said in a statement.Number one on the list is media magnate David Geffen’s The Rising Sun, worth a jaw-dropping $590 million.Originally owned by tech mogul Larry Ellison, the superyacht cost an estimated $200 million to build back in 2004.