Mumbai, Aug. 29 -- COMEX gold futures are edging lower from a three-week high on Friday morning in Asia amid profit taking at higher levels. Meanwhile, upbeat US economic data, including the US Gross Domestic Product (GDP) and weekly Initial Jobless Claims data, provided support to the US Dollar and in turn weighed on the dollar-denominated commodity price. US GDP grew at an annual rate of 3.3% in Q2, compared to the initial estimate of 3.0%. The US Initial Jobless Claims for the week ending August 23 declined to 229K versus 234K prior (revised from 235K). Investors await the release US Personal Consumption Expenditures (PCE) Price Index report for July will take center stage later on Friday. Currently, the yellow metal is quoting at $3471....