The Gazette Review recently made a survey of the largest yachts in the world and their billionaire owners (no surprise there) – which was. Here are the top 10 most expensive yachts in the World List: Al Said Radiant - $ million 7. A - $. purchasing one of the yachts on this list. If you want the best money can buy you've come to the right place. Here are the ten most expensive yachts in the world. 5) Al Said – $ Million. Via togo2006.de Al Said was.