Spot gold was down 0.1% at $1,801.82 per ounce, as of 0040 GMT, after hitting a more than one-week low of $1,793.59 in the previous session. U.S. gold futures eased 0.1% at $1,801.90 per ounce. The dollar index held close to a 3-1/2-month peak against its rival, making gold more expensive for holders of other currencies..