Gold regained strength on Wednesday after an early dip spurred buying from jewellers in Asia, but prices were stuck in a range as investors awaited the outcome of the US Federal Reserve's policy meeting, which could weigh on the dollar. Gold added $2.29 an ounce to $1,667.89 an ounce by 0637 GMT, off an intraday low of around $1,664 an ounce. Gold hit a 6-week high of $1,681.16 on Monday. US February gold rose $3.5 an ounce to $1,668.0 an ounce.