Gold prices edged down on stronger dollar and concerns over the euro-zone. The warnings of Moody's rating agency, that the EU did not make a large progress in solving the debt crisis stimulated sell-off of bonds, stocks and commodities. On the Comex division of the New York Mercantile Exchange, gold futures for delivery in February were traded at USD1,667.45 a troy ounce at the Asian trading, losing 0.04% since opening.