Paris Hilton is giving us an insight into her one of a kind, mega-carat, engagement ring.The heiress and socialite announced her engagement with entrepreneur Carter Reum on Wednesday after one year of dating.The couple celebrated her 40th birthday during their weekend getaway, and her fiancé made the moment even more special, popping the question and giving her a lavish, custom made ring.While taking a well-deserved moment to relax on a private island, Carter got down on one knee and surprised