* Gold futures end highest in a week ahead of Fed
* Silver up too but more modestly despite JPM story
(Recasts and updates prices to close of U.S. session; changes byline and dateline, previously LONDON)
By Barani Krishnan
NEW YORK, Dec 14 (Reuters) - Gold futures ended at their highest settlement in a week on Tuesday as players hedged against a falling dollar before a Federal Reserve policy decision reaffirming stimulus measures for the U.S. economy.
Spot gold, which tracks trades in bullion, settled up too but off the highs of the day.
The Fed said in its December policy statement -- its last for the year -- that it intends to carry through with a purchase of $600 billion of longer-term U.S. Treasuries by the end of the second quarter, clarifying some ambiguities raised in the market. [
]The bond-buying program, expected to flood the market with dollars, has been the biggest catalyst this year for commodities, including gold.
The dollar initially fell against the euro on Tuesday but rebounded after the Fed statement, which forex traders said was also interpreted as positive for the currency, given that the central bank did not announce further expansions in monetary easing. [
]Despite the Fed reaffirming its pledge for the $600 billion, gains and trading volumes in gold remained light as investors generally avoided major positions ahead of the year-end.
"The Fed gave the market what it expected to hear about quantitative easing, but that didn't really translate into a lot of action on gold," said Sterling Smith, an analyst for Country Hedging Inc. in St. Paul, Minnesota.
Gold volumes on the COMEX metals division of the New York Mercantile Exchange was just below half of the 30-day average by 3.30 p.m. EST (1930 GMT), nearly two hours after the market's settlement.
COMEX's February gold futures <GCG1> settled up $6.30 at $1,404.30 an ounce, ranging between $1,392.40 and $1,408.90.
It was the highest settlement since Dec 7, when the February contract finished at $1,409 after hitting a record high at $1,432.50.
Spot gold <XAU=> rose to a session high of around $1,408, from late Monday's quote of below $1,394 in New York. By 3:35 p.m., it stood at just below $1,397.
Gold has risen over 6 percent so far this quarter, driven largely by fluctuations in the dollar and concerns over the outlook for growth in the United States and the euro zone's deepening debt crisis.
Silver closed up in Tuesday's session but only modestly, despite reports that major Wall Street investment bank JPMorgan <JPM.N> was unwinding a big short position in silver.
COMEX's March silver futures <SIH1> finished up 16.4 cents, or 0.6 percent, at $29.788 an ounce. The contract's range was between $29.22 and $29.985.
Spot silver <XAG=> was at $29.51 an ounce, little changed from late Monday's $29.48.
Silver has been a major beneficiary of the investor push into commodities this year and the price is now holding around 30-year highs. But not all investors are as convinced that silver can maintain this performance.
"It would seem as if investors are treating silver as a cyclically sensitive industrial metal during bullish periods and as a 'safe' precious metal during corrections," said asset manager Tiberius in its monthly update.
"Silver's fundamentals are poor, however, and we believe it will tend to underperform both industrial as well as precious metals in the months to come."
Spot platinum <XPT=> rose to $1,705.49 an ounce from $1,695.74. Spot palladium <XPD=> rose to above $7.57 from Monday's $754.47.
(Reporting by Barani Krishnan in New York; additional reporting by Amanda Cooper and Jan Harvey in London;editing by Sofina Mirza-Reid)