Gold prices fluctuate ahead of major U.S. economic data and Fed decision.

Gold prices are slightly up and silver slightly down ahead of the US central bank monetary policy meeting and key US inflation reports. The Federal Reserve's FOMC meeting begins Tuesday morning and ends Wednesday afternoon with a statement and press conference from Fed Chairman Powell. A majority of the marketplace still thinks the Fed will pause in its interest-rate-tightening cycle. Other important US economic reports out this week include the consumer and producer price index reports for May on Tuesday and Wednesday, respectively.