Floyd Mayweather just bought an $18 million 280-carat diamond watch called 'The Billionaire' -- take a look

Getty Images Floyd Mayweather has evolved from the king of the ring to the king of the bling. The retired boxer, who finished his career unbeaten after 50 wins as a professional, has just bought an $18 million watch. It is made of a lot of shiny diamonds. Floyd Mayweather was the king of the ring for over two decades but now, in retirement, the "Money" man has evolved to become king of the bling.See the rest of the story at Business Insider NOW WATCH: Brazil's empty $300 million World Cup stadiu...