* Silver rises to highest level since early 2008
* Gold holds flat as equity markets rally
* Chinese factory data, banking rules boost equities
* Coming up: GFMS Gold Survey Update due Tuesday (Recasts, updates prices, market activity to close, changes byline, dateline, previously LONDON)
By Frank Tang
NEW YORK, Sept 13 (Reuters) - Gold ended flat on Monday while silver rose to its highest level since early 2008, as upbeat Chinese factory data and new global banking rules boosted optimism about the economy.
Wall Street rose on the economic news, which boosted silver, a precious metal that also has industrial uses. But investment demand kept gold within about 1.5 percent of an all-time high.
Since Aug. 24, silver has rallied about 14 percent, outperforming gold's 3 percent rise over the same period, Reuters data showed.
The gold-to-silver ratio fell to just above 60, the lowest level since January. (Chart: http://link.reuters.com/wak33p)
Miguel Perez-Santalla, vice president of sales at Heraeus Precious Metals Management in New York, said that while scrap supply of gold was rising, prices remained underpinned by safe-haven buying and investment demand amid economic uncertainties. But he expected silver to keep outperforming gold.
"Fundamentally, silver is very actively consumed in all sort of businesses and industries. I still think silver has more potential than gold," he said.
Silver is widely used in the electronics sector because of its excellent conductivity. The metal is also used in the photography, medical and the jewelry industries.
Spot silver <XAG=> was last at $20.08 an ounce, the highest since March, 2008 and up from $19.84 on Friday.
Spot gold <XAU=> was at $1,244.30 an ounce by 2:55 p.m. (1855 GMT), down slightly from $1,245 in New York on Friday. Gold remains within around 1.5 percent of the all-time highs set in late June at $1,264.90.
Last week, gold posted its first decline in more than a month. Gold hit a two-month high above $1,262 an ounce last week on renewed global economic concerns before losing some gains to profit-taking and better-than-expected U.S. data on jobless benefits.
U.S. December gold futures <GCZ0> settled up 60 cents at $1,247.10 an ounce.
The gold market largely ignored an agreement among global regulators on bank capital rules, known as Basel III, which requires the sector to raise hundreds of billions of euros. [
]"It seems risk is a bit back on the table, with China looking okay and Basel swinging the whip, but so far ahead that it's going to take quite a few years for the banks to implement (the rules)," Ole Hansen, senior manager at Saxo Bank, said.
The new rules will take effect over a longer timeframe than originally expected, and that boosted the global stock market and took some steam out of gold's safe-haven appeal, traders said.
Wall Street trimmed initial gains but still rose nearly 1 percent. [
]Adding to the pressure on gold was a broad-based decline in the dollar, which fell 1 percent against the euro <EUR=> as investors took on more risk. [
]Gold usually benefits from weakness in the dollar, which makes bullion cheaper to non-U.S. buyers, but the inverse relationship between the two has eroded somewhat in recent weeks as risk appetite has dominated flows into both assets.
UPBEAT DEMAND OUTLOOK
Although consumer demand in Asia was muted on Monday, this time of year marks a period of intense offtake in India, the world's largest consumer, while the outlook for demand in Europe this year looks fairly bright.
Helping improve risk appetite was a pickup in Chinese industrial production and money growth in August that reflected buoyant economic growth despite government efforts to clamp down on bank lending and property speculation. [
]The platinum group metals rose along with other industrial commodities led by crude oil. <CLc1>
Platinum <XPT=> was at $1,546.50 an ounce, against $1,536.98 and palladium <XPD=> was at $529, from $514.63. Prices at 3:06 p.m. EDT (1906 GMT)
LAST/ NET PCT YTD
CLOSE CHG CHG CHG US gold <GCZ0> 1247.10 0.60 0.0% 13.8% US silver <SIZ0> 20.110 0.308 0.0% 19.4% US platinum <PLV0> 1549.90 7.40 0.5% 5.4% US palladium <PAZ0> 527.80 10.25 2.0% 29.1% Gold <XAU=> 1244.85 -0.15 0.0% 13.5% Silver <XAG=> 20.08 0.24 1.2% 19.2% Platinum <XPT=> 1546.50 9.52 0.6% 5.5% Palladium <XPD=> 529.00 14.37 2.8% 30.5% Gold Fix <XAUFIX=> 1243.75 0.75 0.1% 12.7% Silver Fix <XAGFIX=> 19.93 3.00 0.2% 17.3% Platinum Fix <XPTFIX=> 1545.00 3.00 0.2% 5.4% Palladium Fix <XPDFIX=> 522.00 0.00 0.0% 29.9% (Additional reporting by Amanda Cooper and Maytaal Angel in London; Editing by David Gregorio)