drunken "scrabble" problem!

I've been playing a drunken game of scrabble with extra points for certain topics
(enough said) but we don't have a dictionary and have a problem. I think jewellery is spelt like that but my friend thinks it's spelt like jewelry. anyone know who is right? is it an american-english thing or is one of us totally wrong?
PS i'm winning by 50 points!!!
PPS no i don't normally spend my evenings playing scrabble

PS i'm winning by 50 points!!!
PPS no i don't normally spend my evenings playing scrabble