If it's a typo, it's a very common one - over 16,000,000 and 9,000,000 searches respectively for the 2 mis-spellings - more than for any correct spellings, English or American!
In fact, unless I've read the AdWords report wrongly, Google doesn't report any use of the correct words in a search except as part of a phrase, eg "gold jewellery" or even "jewelry uk". I'll definitely have to tweak my listings!