Gold rose on Tuesday, tracking a firm euro, as a slightly better-than-expected growth data from Germany and France helped ease concerns about the two biggest economies of the euro zone. Spot gold rose 0.4 percent to $1,615.20 an ounce by 0736 GMT, after losing 0.6 percent in the previous session. US gold futures contract for December delivery inched up 0.3 percent to $1,617.80. Spot platinum traded up 1.4 percent at $1,399.99.