Lev Leviev
London, England
Net Worth: $4.5 billion
Rank: 227Earlier this year the world's largest diamond cutter decamped from Israel to the posh London suburb of Hampstead. His new $65 million home, called the Palladio, is an extravagant 17,000-square-foot, seven-bedroom estate replete with in-house nightclub and gold-plated indoor pool. Neighbors include musicians Ringo Starr and Maurice Gibb.