7. Dmitry Rybolovlev & Elena Rybolovleva: $604 Million
The Russian oligarch separated from his 26-year-old wife Elena in 2008 in a highly publicized and incredibly bitter divorce battling for over 6 years. During the time of the divorce, Dmitry was the 165th richest man in the world. He had a net worth equaling $8.5 billion which he had from his fertilizer business. The former Cardiologist student filed for the divorce from her ex-husband citing his several extra-marital affairs. Though she was awarded $4.5 billion later she ended up with $604 million.