By Moming Zhou NEW YORK (MarketWatch) -- Gold futures rose Tuesday, moving back above $1,010 an ounce as a weaker U.S. dollar boosted gold's appeal and as demand for gold exchange-traded funds showed improvement. Other metals also rose. The dollar renewed its slide, falling to a fresh one-year low against the euro as the Federal Reserve began its two-day policy meeting Tuesday. Meanwhile, holdings in SPDR Gold Trust (GLD 99.56, +1.20, +1.22%) , the biggest gold ETF, rose more than 15 metric tons to the highest level in more than two months. Gold for September delivery gained $11.90, or 1.2%, to $1,015.60 an ounce on the Comex division of the New York Mercantile Exchange. On Monday, the contract briefly fell below the $1,000 mark for the first time in a week. It had risen to $1,019.80 last Wednesday, an all-time high for a front-month contract. More actively traded, the December gold contract rose $11.50, or 1.1%, to $1,016.40. It had topped $1,020 an ounce on Wednesday. The London afternoon fixing, a global gold benchmark, stood at $1,014 an ounce Tuesday, up 1.7% from the previous day. "Gold is sustaining the $1,000 mark on the back of robust investment demand and a renewed decline in the U.S. dollar," said analysts at Commerzbank in a note. In currencies trading, the euro-zone single currency rose as high as $1.4821, the strongest level since last September. The dollar index (DXY 76.08, -0.70, -0.91%) fell to 76.041, down from 76.780 late Monday. See Currencies. A weaker greenback typically boosts dollar-denominated commodities prices. Making a similar move, dollar-denominated crude futures rose back above $71 a barrel Tuesday. See Futures Movers. In gold ETFs, holdings in SPDR Gold Trust rose 15.25 metric tons on Monday to stand at 1,101.73 metric tons, the highest level since July 13. Monday's increase "is encouraging as investors become acclimatized to four-digit prices," said James Moore, analyst at TheBullionDesk.com. "But we still see gold at the greatest risk to a downside correction, particularly should the G20 agree to strong changes on banking and trading operations," he added in emailed remarks. Leaders of the world's most powerful economies will meet in Pittsburgh later this week for the Group of 20 summit. They will discuss, among other things, further actions to ensure a sustainable recovery from the global financial and economic crisis. Read G20 preview. In other metals, December silver rose 31.5 cents, or 1.9%, to $17.195 an ounce as October platinum declined $14.70, or 1.1%, to $1,336.90 an ounce and December palladium lost $5.75, or 1.9%, to $304.90 an ounce. December copper added 5 cents, or 1.8%, to $2.8555 a pound.

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