( CNN ) -- Russian oligarch Dmitry Rybolovlev is set to lose half his wealth after being ordered to pay his former wife $ 4.5 billion in a settlement dubbed the `` most expensive divorce in history . '' Elena Rybolovleva 's lawyer Marc Bonnant said the order from a Geneva court was unprecedented , and `` this record judgment is a complete victory . '' However , Rybolovlev 's spokesman Sergey Chernitsyn said the divorce was still a `` win '' for the oligarch . The two had been battling over the settlement for six years , after Elena Rybolovleva , the oligarch 's wife of 23 years , filed for divorce . Rybolovlev 's total wealth is estimated at $ 8.8 billion , according to the 2014 Forbes list of billionaires . He made most of his money from the $ 6.5 billion sale of his stake in Russia 's largest potassium fertilizer company in 2010 . Rybolovlev is also known as the owner of the Monaco Football Club , which plays in the top French soccer league . Rybolovlev made headlines when he bought the Palm Beach Maison de L'Amitie from Donald Trump for reported $ 95 million in 2008 . In 2012 , the Rybolovlev 's then 21-year-old daughter Ekaterina bought Manhattan 's most expensive apartment -- the penthouse on Central Park West which cost $ 88 million . A trust set up in Ekaterina 's name also reportedly own Scorpios , the Greek island where Jackie Kennedy married the former owner of the island , Aristotle Onassis , in 1968 . The oligarch 's lawyers will appeal against the decision , questioning the sum . `` There will definitely be a new appellate review and therefore this judgment is not final given the existence of two levels of appeal in Switzerland , '' said Tetiana Bersheda , Rybolovlev 's lawyer . Read more : 11 intriguing things owned by wealthy Russians .
Dmitry Rybolovlev agreed to pay his former wife $ 4.5 billion in a financial settlement . Rybolovlev 's total wealth is estimated at $ 8.8 billion , according to Forbes . Elena Rybolovleva 's lawyer called the settlement a ` ` record judgment ''