PRECIOUS-Gold inches lower on cautious optimism over U.S.-China trade

Gold eased on Monday, pressured by optimism over U.S.-China trade ties following a report of "constructive talks" over the weekend, but held within a tight range as caution set in with investors awaiting concrete signals on the negotiations. FUNDAMENTALS * Spot gold inched down 0.1% to $1,465.62 per ounce at 0157 GMT, while U.S. gold futures were down 0.1% at$1,466.80 per ounce. * The United States and China had a high-level phone call on Sat