* Strong investment, ETF demand boost bullion prices
* Traders await direction from G20 summit
* Gold up 4 pct in Q1, platinum up 21 pct-Reuters data (Recasts, updates with quotes, closing prices, adds second byline, dateline, previously LONDON)
By Frank Tang and Jan Harvey
NEW YORK/LONDON, April 1 (Reuters) - Gold ended up after a mixed session on Wednesday on strong investment demand, in spite of poor bullion demand by top consumer India and after the European Central Bank completed a gold sale.
Spot gold <XAU=> was at $926.35 an ounce at 2:37 p.m. EDT (1837 GMT), up 1.0 percent from its last quote $917.15 in New York on Tuesday.
U.S. gold futures for June delivery <GCM9> settled up $2.70 at $927.70 an ounce on the COMEX division of the New York Mercantile Exchange.
Investors were focused on the G20 summit in London.
"The market is looking for guidance, and if (the G20) can't provide that, risk aversion will obviously continue and that will have an impact on gold on the upside," Saxo Bank senior manager Ole Hansen said.
India imported no gold for the second month in a row in March as high prices dented consumer demand in the world's biggest consumer for the metal. [
]Turkey said it had resumed imports of gold in March after shipping in no bullion in the first two months of the year. Strong sales of scrap gold within the country have eased, according to dealers. [
]"A recession is not good for gold demand on the jewelry side, however, what the governments do in response to recession is very positive for gold on the investment side," said Mark Johnson, fund manager at USAA, who manages fund assets worth more than $900 million.
Traders are also awaiting an interest rate decision from the European Central Bank on Thursday and Friday's U.S. nonfarm payrolls data for direction.
Bullion ended the first quarter up 4 percent, boosted by fears that measures to stimulate the global economy would lead to inflation, against which gold is bought as a hedge.
Buying of gold and precious metal-backed exchange-traded funds was particularly strong in the first quarter as investors sought the safety of physical assets. [
]The European Central Bank said it completed the sale of 35.5 tonnes of gold on Tuesday. The news had little impact on price. [
]Platinum group metals were higher. Spot platinum <XPT=> at $1,132.50 an ounce, up 0.8 percent from its previous close $1,123.50, while spot palladium <XPD=> was at $217.00 an ounce, up 1.6 percent from its previous finish of $213.50.
The metals suffered from falling demand from carmakers, the major buyers of the metals which are used in the manufacture of autocatalysts.
But platinum recovered in the first quarter from a steep fall late last year, posting gains of nearly 21 percent, according to Reuters data. The metal fell as much as 68 percent toward the end of last year from its record high of $2,290 an ounce reached in March, 2008.
Precious metals group Heraeus said in a monthly note that platinum had benefited from speculators' and investors' hopes of a turnaround in the global economic situation.
"Buyers were relying on the surprisingly good figures from the U.S. economy -- home sales and durable goods -- as well as the U.S. government's plan to buy up "toxic assets" worth $1 trillion from the banks," it said.
Spot silver <XAG=> was at $12.99 an ounce, up 0.5 percent from its previous finish $12.93 late in New York on Tuesday. (Editing by David Gregorio)