LONDON: Socialite Paris Hilton has sparked wedding rumours after being spotted at a party in Los Angeles wearing a diamond ring on her engagement finger. Hilton, who, recently, expressed her desire to have four children by the time she turns 30, is back together with shipping heir Stavros Niarchos, with whom she had split in May after dating him for a year, reports contactmusic.com. Hilton’s publicist refused to comment on the wedding rumours.