Owner: Roman Abrahamovich Price: $ 350 million Roman Abrahamovich has been known for his ostentatious lifestyle, and it doesn’t come as surprise that he owns the world’s most expensive private owned yacht, named Eclipse. Purchased at the time of recession, this mega-yacht broke all previous records for its size and prize. Built over a 2 year period this 558 foot water-giant, boasts of a pool with Havana bars around, 2 helipads, 20 water jets, a cinema, library, and a 5000 sq ft master suite. Taking care of everyone’s safety in case of an underwater attack, a missile detection system has also been incorporated, along with an underwater entrance-cum-exit, in case of emergency situations. Also, there are a total of 9 decks which have their entry-cum-exit points, making this the safest yacht built. Read more Luxury yachts of the super rich - Bornrich So if want a yacht and have an extra $350 mill setting around, this could be yours!