Dec 13 (Reuters) - Gold prices edged up on Wednesday, buoyed by weaker Treasury yields, but bullion was still near its lowest in over three weeks as the dollar inched higher ahead of the U.S. Federal Reserve's interest rate decision and policy outlook.

Spot gold gained 0.1% at $1,981.30 per ounce, as of 1157 GMT. U.S. gold futures rose 0.2% to $1,997.60...[LINK]