US gold futures slipped about 1 percent on Tuesday, hovering below a six-month high hit in the previous session as investors turned cautious ahead of the US Federal Reserve's policy review, but tensions over Crimea could cushion the fall. US gold futures for April delivery hit a low of $1,358 an ounce and stood at $1,360.90 by 0728 GMT, down $12.00. The contract rallied to $1,392.60 on Monday, its strongest since September last year. Cash gold, which often tracks COMEX, fell $6.36 an ounce to $1,359.98, having rallied on Monday to a six-month high at $1,391.76 before profit taking kicked in.