(Updates with quotes, prices, changes dateline, pvs SINGAPORE)
By Veronica Brown
LONDON, Feb 13 (Reuters) - Gold briefly dipped below $900 per ounce on Wednesday as platinum prices came off record highs.
By 1150 GMT, spot gold <XAU=> was quoted at $900.60/901.30 per ounce, having earlier dropped to $885.30, compared with $907.70/908.50 quoted in New York late on Tuesday.
Dealers and analysts said a sharp retreat by platinum from a record $1,965 hit on Tuesday had taken away a key support for gold, exposing a lack of real upside momentum.
"Really we should be in for a time of side-ways action to lower in gold -- a time of reflection to see how interest rate cuts pan out, how policy changes that have been implemented pan out and what happens generally with the economy," said Simon Weeks, director of gold sales at Bank of Nova Scotia.
"There's a bias probably on the downside, simply because we need to unwind some of the concentration that we have at the moment," he added.
Gold fell on Tuesday after billionaire investor Warren Buffett said he had offered to reinsure $800 billion of debt guaranteed by bond insurers, easing some worries about further fallout from the credit crisis. [
]Currency fundamentals were less favourable for gold, as the euro lost upward momentum against the dollar on concerns about downside surprises on the euro zone economy and the possibility of European Central Bank interest rates cuts in coming months.
A stronger U.S. currency makes dollar-priced gold less attractive for non-U.S. investors.
On physical markets, purchases from jewellers and investors started to pick up as prices moved away from historic highs, but business remained slow in main consumer India despite the wedding season. [
]Looking ahead, investors were watching out for U.S. retail data for a temperature check on the world's biggest economy.
Economists polled by Reuters estimate U.S. retail sales slipped 0.2 percent in January after a 0.4 percent decline in December, but rose 0.2 percent with auto transactions excluded. [
]In other bullion markets, COMEX's April gold futures <GCJ8> fell $6.50 to $904.6 an ounce.
PLATINUM BREATHER
Platinum prices retreated from a blistering rally that saw nine days of successive record highs as investors factored in reduced output from top producer South Africa, as mines there endure a power crisis.
Spot platinum <XPT=> fell to $1,914/1,924 an ounce from $1,920/1,925 in New York on Tuesday, when it rallied to a record high of $1,965.
While investors had decided to book profits from the latest pulse higher, dealers and analysts said the overall trend remained bullish.
"A breather is "healthy" in our view," Commerzbank commodities analyst Eugen Weinberg said in a note to clients.
"The ongoing risk of further bottlenecks in energy supply in South Africa is creating the basis for further upside potential. News on the supply side remains worrying," he added.
Northam Platinum Ltd <NHMJ.J> on Tuesday posted a 29 percent fall in headline earnings per share, while output also fell in the first half of its financial year.
Palladium <XPD=> followed platinum's lead, falling to $426/430 an ounce from $434/437 an ounce late in New York on Tuesday and off a 6-year high of $447 an ounce.
Silver <XAG=> eased to $17.04/17.09 an ounce from $17.13/17.18 in New York -- off Tuesday's 27-year high of $17.60 an ounce.
(Additional reporting by Lewa Pardomuan in Singapore; editing by Chris Johnson)