Gold prices extended their decline on Tuesday, hitting a near three-week low, as optimism about a possible trade deal between the United States and some countries weakened demand for safe-haven gold, while investors awaited major central bank policy announcements this week. Spot gold recently fell below $3,950 per ounce, down nearly 1% on the day. Earlier in the session, gold prices had reclaimed the $4,000 mark. Tim Waterer, chief market analyst at KCM Trade, said: "The thawing of trade relations between the United States and some countries has somewhat weighed on gold prices, as safe-haven buying has eased." (Gold Ten)