Update prices
By 0338 GMT it had increased gold Spot gold rose 0.4 percent to $2,585.54 an ounce, after hitting an all-time high of $2,588.81 an ounce earlier in the session.
U.S. gold futures rose 0.1 percent to $2,613.40 an ounce.
The index fell Dollar 0.2 percent, making gold less expensive for holders of other currencies.
All eyes are on the Fed this week, with speculation mounting about the extent of interest rate cuts at its September 17-18 policy meeting and the pace of future cuts. The Bank of England and the Bank of Japan are also set to announce their monetary policy decisions later this week.
As for other precious metals, they rose. Silver Spot gold rose 1 percent to $30.95 an ounce, its highest in two months. Platinum rose 0.5 percent to $1,000.35 an ounce, and palladium rose 0.1 percent to $1,069.52 an ounce.