* Spot gold hits 18-month high, US gold 14-month top
* Dollar falls to near one-year lows vs euro
* Gold, silver, platinum hit multi-month highs
(Rewrites with late New York prices, adds comment, price table. Adds NEW YORK to dateline)
By Carole Vaporean and Jan Harvey
NEW YORK/LONDON, Sept 16 (Reuters) - Gold hit an 18-month high on Wednesday as the dollar slid near one-year lows against the euro, sparking buying of the yellow metal as an alternative asset and helping lift silver and platinum to multi-month peaks.
Spot gold <XAU=> remained sharply higher at $1,017.65 an ounce into late New York dealings, compared with $1,005.90 on Tuesday. Wednesday's high of $1,020.50 an ounce was last reached in March 2008.
In New York, December gold <GCZ9> finished $13.90 higher, a 1.38 percent gain, at $1,020.20 an ounce on the COMEX division of the New York Mercantile Exchange. The contract reached a high at $1,023.30 an ounce, unseen since July 2008.
Gold's rally to levels unseen in 14 months primarily resulted from heavy U.S. dollar selling against the euro.
"Gold's rise is related to the weaker dollar, which is a function of risk aversion coming out of the market. We had strong dollar buying for months because of the credit crisis. As financial markets give every impression of stabilizing, that is unwinding. A byproduct is much higher gold prices," said HSBC metals analyst and senior vice president, James Steel.
The precious metal could be building up for an assault on its previous all-time high above $1,030 an ounce, set in March 2008 in the spot market, traders said. U.S. gold is eyeing the $1,033.90 per ounce prior record high on gold's continuation chart.
Given the extent of net speculative buy positions in COMEX-traded gold futures, conditions for gold are not as favorable as they were at the time of last year's record high, said Barclays Capital analyst Suki Cooper.
Nonetheless, if the dollar keeps falling, gold could continue to climb, she said.
"If we see currency movements becoming much more favourable -- if we see the dollar weakening substantially -- that is going to be a key support for prices," Cooper said.
The dollar slid to a near one-year low against the euro as optimism about global economic recovery eroded demand for the greenback as a safe haven. [
]Gold was also boosted when several stronger-than-forecast U.S. economic and inflation readings over the last two days implied a potential for inflation to heat up down the road.
"If a large element of the buying is based on inflation materializing and it fails to, you could see some liquidation. But it may take many months before that would appear and there is a bullish inflation camp that won't pay attention to that," said HSBC's Steel.
U.S. industrial output advanced for a second consecutive month in August, while higher gasoline costs pushed up consumer prices, although economists said the risk of inflation remained low. [
] [ ]On Tuesday, sales at U.S. retailers rose at their fastest pace in 3-1/2 years in August and Federal Reserve Chairman Ben Bernanke said the recession was "very likely" over.
At the annual Denver Gold Forum, the Gold Fields <GFIJ.J> chief executive officer told Reuters he sees gold hitting $1,600 an ounce if crude oil goes to $100 a barrel in the next six to 18 months. [
]For additional stories from Denver click here [
]PHYSICAL DEMAND PICKS UP
Gold's rally helped lift other precious metals, with silver <XAG=> and platinum <XPT=> -- both of which are used in manufacturing -- also hitting multi-month highs as base metals rose on the more positive economic growth outlook. [
]Silver prices hit a 13-month high of $17.45 an ounce, and held around $17.40 in late trade, against $16.97 on Tuesday.
Platinum hit a peak of $1,346, its firmest since September last year, and was later at $1,341 against $1,323, while palladium <XPD=> was at $296 an ounce against $291.50.
Close Change Pct 2008 YTD
Chg Close Pct Chg US gold <GCZ9> 1020.20 13.90 1.4 884.30 15.4 US silver <SIZ9> 17.430 0.430 2.5 11.295 54.3 US platinum <PLV9> 1350.10 29.80 2.3 941.50 43.4 US palladium <PAZ9> 300.50 4.25 1.4 188.70 59.2 Prices at 4:41 p.m. EDT (2041 GMT) Gold <XAU=> 1016.60 10.70 1.1 878.200 15.8 Silver <XAG=> 17.36 0.39 2.3 11.30 53.6 Platinum <XPT=> 1344.50 21.50 1.6 924.50 45.4 Palladium <XPD=> 296.00 4.50 1.5 184.50 60.4 Gold Fix <XAUFIX=> 1015.75 19.75 2.0 836.50 21.4 Silver Fix <XAGFIX=> 17.290 0.770 4.7 14.760 17.1 Platinum Fix <XPTFIX=> 1339.00 6.00 0.5 1529.00 -12.4 Palladium Fix <XPDFIX=> 298.00 1.00 0.3 365.00 -18.4
For graphic on key historic moves in gold, click on http://graphics.thomsonreuters.com/099/GLD_TMLN0909.html
For a take-a-look on gold hitting an 18-month high click on [
](Additional reporting by Jane Grieve; Editing by Peter Blackburn and Lisa Shumaker)