KARACHI  - Gold price improved by Rs 43 to close at Rs 48,514 per 10 grams in the local market Thursday, market sources said. According to Karachi Sarafa Association official, tola price also inched up by Rs 50 to Rs 56,600. Reuters adds from London: Gold fell to a 4-week low, acting more like a risk asset than a safe haven investment, and influenced by pessimistic expectations for a EU summit that is unlikely to yield the magnitude of measures needed to tackle its crisis.