Gold and silver prices lost luster along with the dollar as investors pushed up stocks on hopes that the Federal Reserve Open Market Committee will announce more economic stimulus after its two-day policy meeting Wednesday. Spot gold prices fell 0.25% to $1,709.30 an ounce. SPDR Gold Shares (GLD), tracking a 10th of an ounce of bullion, shed 0.21% to 165.46. GLD is consolidating below its 50-day moving average while holding above its longer-term