(Updates prices, adds comment)
* Gold rallies to record highs in five key currencies
* Investors fret over euro zone, U.S. debt
* Silver climbs to highest since early May
By Jan Harvey
July 18 (Reuters) - Gold prices rallied to record highs above $1,600 an ounce in Europe on Monday as investors spooked by the euro zone debt crisis and the threat of a U.S. default bought into the metal as a haven from risk.
Risk aversion swept the markets after euro zone stress test results failed to address the potential for a Greek sovereign debt default before a summit in Brussels on Thursday, and as a deadline to raise the $14.3 trillion U.S. debt ceiling loomed.
Stock markets, peripheral euro zone debt, oil prices and the euro came under pressure, while the Swiss franc — often seen as a safe haven — and precious metals climbed.
Spot gold rose as high as $1,602.86 an ounce and was up 0.4 percent at $1,600.26 an ounce at 1310 GMT. Gold rose more than 3 percent for a second straight week to Friday, a feat it has not achieved since February 2009.
“Gold has room to go up. The smouldering debt crisis in the euro zone peripheral countries and the uncertainty over the debt limit in the United States are currently supporting prices,” said Commerzbank analyst Daniel Briesemann.
“It seems gold will stay well supported unless we get a real and convincing solution from the extraordinary EU summit that takes place on Thursday.”
European shares fell sharply as long-awaited bank stress test results only intensified worries about the regional debt crisis, while U.S. stock index futures slumped.
Sovereign default fears are growing in both Europe and the United States. The United States is struggling with deficit reduction talks ahead of the White House’s July 22 deadline on a deal to raise the $14.3 trillion debt ceiling.
Gold prices backed off from the $1,600 an ounce level only briefly after U.S. Treasury Secretary Tim Geithner expressed confidence that Congress would raise the debt ceiling and said Republicans had taken “default off the table.”
On the foreign exchange markets, the euro slid 0.5 percent against the dollar. Gold rallied across a number of major currencies, also hitting record highs in euro, sterling, South African rand and Canadian dollar terms.
But while it has risen 12.5 percent in dollar terms this year and 7.2 percent in euros, gold has fallen 1.4 percent when priced in Swiss francs.
“Investors are increasingly looking to gold as a safe haven as the U.S. dollar, pound sterling and the euro continue to devalue against stronger currencies such as those of Canada, Australia, Norway and Switzerland,” said Angelos Damaskos, chief executive of Sector Investment Managers.
The cost of insuring peripheral euro zone debt against default jumped to record highs as contagion spread on investor concern over the failure of policymakers to quickly resolve the region’s debt crisis.
Meanwhile data from U.S. futures regulator the Commodity Futures Trading Commission showed on Friday that managed money sharply raised bullish bets in U.S. gold futures and options in the week ended July 12 as bullion prices rallied.
“CFTC data shows a surge into gold, so despite the higher levels the professionals have returned to gold with a vengeance,” said Saxo Bank analyst Ole Hansen.
U.S. gold futures GCv1 for August delivery were up $10.90 an ounce at $1,601.00, having peaked at $1,603.80.
Other precious metals tracked gold higher, with silver rising above $40 an ounce for the first time since early May. The grey metal rallied to a record $49.51 an ounce in April before correcting sharply.
It has rallied more than 15 percent in the last two weeks, however, as gold prices have risen.
Silver peaked at $40.44 an ounce and was later bid at $40.37 an ounce against $39.27. Spot platinum was bid at $1,766.24 an ounce versus $1,748, while spot palladium was at $788.22 an ounce against $771. (Editing by James Jukwey)