(Updates with analyst comments, New York closing prices, adds NEW YORK to dateline)
By Frank Tang and Atul Prakash
NEW YORK/LONDON, Feb 5 (Reuters) - Platinum hit a record high above $1,800 an ounce on Tuesday on supply concerns, but later lost steam as a dollar rise triggered profit-taking and dragged down prices as much as 1.7 percent.
Palladium also fell after rising to its highest level in six years, gold slipped to a two-week low after setting historic highs last week and silver fell more than 2 percent.
"As platinum moved above $1,800 an ounce, some people started taking profits. The market was a little bit overbought today and you just see a consolidation at the moment," said Michael Widmer, metals analyst at Lehman Brothers.
"But fundamentals are still very strong. We are going to have a deficit on the platinum market this year, with shortfalls of around 200,000 ounces by the end of the year.
"I wouldn't be too concerned about the price fall today and still think that $2,000 is a realistic target."
Platinum <XPT=> rose to $1,809 an ounce initially before falling to $1,770/1,775, down from $1,790/1,800 late in New York on Monday. The active U.S. NYMEX platinum contract for April delivery <PLJ8> settled down $16.60 at $1,781.00 an ounce.
Analysts said a rise in the dollar also made the upward move in precious metals prices difficult.
The euro slid against most major currencies after weak euro zone service sector data fueled expectations that the European Central Bank might have to cut interest rates to shore up growth.
A firmer dollar makes precious metals costlier for holders of other currencies and often lowers demand.
"Today, the ISM (Institute for Supply Management) report created selling in the stock market, and that continued to put pressure on profit taking in gold," said George Nickas, a precious metals broker with FC Stone in New York.
The fall in the index reignited fears the U.S. economy is slowing down despite a series of rate cuts to revive growth.
"Platinum is also being dragged down by gold, which has fallen quite sharply mainly on the dollar," said Stephen Briggs, economist at SG Corporate and Investment Banking.
Analysts said the worst was far from over for South African mines, which produce four-fifths of the world's platinum, after state power firm Eskom allowed them only limited increases in their electricity consumption.
Platinum and palladium are used in jewelry and in vehicle catalysts, where they help clean exhaust gases.
GOLD STRUGGLES
Gold remained under pressure after Friday's rally to a record high of $936.50 an ounce induced profit taking, but some dealers said the metal was still on track to touch new highs due to uncertainties in the dollar's outlook.
Spot gold <XAU=> fell as low as $885.30 and was quoted at $886.85/887.55 by New York's close at 2:15 p.m. EST (1915 GMT), against $904.40/905.10 late Monday in New York.
The gold contract for April delivery at the COMEX division of the NYMEX <GCJ8> settled down $19.10 or 2.1 percent at $890.30 an ounce.
Weakness and volatility in global stock have recently boosted gold as investors fled to safe-haven investments. However, traders sold in the highly liquid gold market to cover losses in equities on Tuesday, dealers said.
"Even what normally is bullish for the metals has been ignored in the rush for cash," said George Gero, vice president of RBC Capital Markets Global Futures in New York.
Gold has gone up by as much as 12 percent this year, and physical dealers expect buying on dips from jewelers to persist, though trading has begun to slow down in Asia ahead of this week's Lunar New Year celebration.
London-based consultancy GFMS said on Monday that the price of gold is likely to peak at just over $1,000 per ounce in 2008 and benefit from any weakening of the U.S. economy as investors seek new havens for their funds. [
]Silver <XAG=> fell to $16.31/16.36 from its Monday's finish of $16.69/16.74 an ounce, while palladium <XPD=> jumped as high as $426.50 before slipping to $411/415, versus $423/428 late in the U.S. market. (Additional reporting by Lewa Pardomuan in Singapore, editing by Matthew Lewis)