Gold prices held relatively flat Tuesday on the Comex division of the New York Mercantile Exchange, as equity markets fell after early gains in New York. The dollar was little changed. The dollar index, a prorated measure of the greenback against six major currencies, rose 0.16 percent to 79.67 on the International Exchange. Stock markets were lower or flat in Asia, Europe and the United States, while the dollar was broadly higher in Asia -- excluding the yen and the Hong Kong dollar -- and across Europe. Gold added $1.80 to reach $1,766.40 per troy ounce. Silver settled at $33.94, down 3 cents. The euro fell to $1.2902 from Monday\'s $1.2931. The U.S. dollar fell to 77.80 yen from 78.85 yen. The British pound fell to $1.6192 from $1.6219. The dollar rose to 0.9806 Canadian dollars from 0.9785 Canadian.