* Gold jumps after beating technical resistance below $900
* Strong interest in out-of-money gold options seen
* Investor demand tested as ETF buying stalls
(Recasts, updates with quotes, closing prices, adds NEW YORK to dateline)
By Frank Tang and Rebekah Curtis
NEW YORK/LONDON, April 23 (Reuters) - Gold rallied to a three-week high above $900 an ounce on Thursday on a combination of buying by commodities funds, technical strength and a lower dollar versus the euro.
A back-and-forth session on Wall Street and ongoing jitters over the health of the U.S. economy are enhancing the precious metal's appeal as a haven from risk, while physical demand is picking up in major consumer India ahead of a key festival, analysts said.
Gold <XAU=> hit a session high of $908.70 an ounce, its firmest price since April 3, and was at $904.30 an ounce at 2:51 p.m. EDT (1951 GMT), up 1.7 percent from its late Wednesday quote $889.15 in New York.
BNP Paribas analyst Michael Widmer said news that U.S. existing home sales fell to a much lower-than-expected annual rate in March was a bit disappointing for the equities market. [
]"There is still uncertainty. People are asking themselves at what stage the economy will bottom out," Widmer added. "There is still safe haven appeal for gold."
Gold climbed on the U.S. housing news, then jumped after breaking technical resistance just below $900 an ounce.
Meanwhile, Jonathan Jossen, a COMEX gold options floor trader, said that there was strong interest from banks and commission houses in out-of-money longer-dated call options.
Jossen said that gold futures could trade sharply higher if they could breach above the $911 key resistance level.
U.S. gold futures June delivery <GCM9> settled up $14.10, or 1.6 percent, at $906.60 an ounce on the COMEX division of New York Mercantile Exchange.
INFLOWS TO GOLD ETF SLOW
But gold has held between $870-900 in recent sessions, struggling to gain traction as buying of gold-backed exchange-traded funds stalled.
Holdings of the world's largest gold ETF, the SPDR Gold Trust <GLD>, are at 1,105.98 tonnes, having recently seen their largest outflows since last autumn. [
]"For gold to be really moving on the upside, you've got to see more money coming into ETFs to justify that, and that has not been the case for some weeks now," Simon Weeks, director of precious metals at the Bank of Nova Scotia, said.
Gold-backed exchange-traded funds saw inflows of 456 tonnes in the first quarter of 2009, against a total 321 tonnes for the whole of the previous year, the World Gold Council said on Thursday. [
]A weaker dollar versus the euro also helped to support bullion, analysts said, as a lower U.S. currency makes gold cheaper for holders of other currencies. [
]Buying from India ahead of the Akshaya Tritya festival on Monday, an auspicious time for gold buying, is also helping drive prices higher, analysts said.
Silver <XAG=> was at $12.78 an ounce, up 4.1 percent from its previous finish of $12.28.
Among other precious metals, platinum <XPT=> was at $1,173.00 an ounce, up 0.4 percent from its late Wednesday quote of $1,168.50 and palladium <XPD=> $230.00 an ounce, essentially unchanged from its previous finish.
Metals consultancy GFMS said in a closely watched report that platinum group metals will take little support from their supply and demand fundamentals this year, but could benefit from investment demand if gold climbs. [
]The group said it expects platinum to trade in a range of $900 to $1,375 in 2009, and palladium to stay between $170 and $325.
(With additional reporting by Jan Harvey)