Gold prices rose in European trade for the first time in three days, trading above $2300 an ounce once more and recovering from two-week lows as the dollar stalled.    Investors now await important US data later today on US growth and unemployment claims to gather more clues on the future of monetary policies.    Prices   Gold prices rose 0.7% to $2313 an ounce, with a session-low at $2296.    Gold lost 0.95% on Wednesday, the second loss in a row, plumbing two-week lows at $2293 as both the dollar and US yields gained ground back then.   The Dollar    The dollar index fell 0.2% on Thursday away from eight-week highs at 106.13 against a basket of major rivals.