Gold is heading to the highest price in more than a half year, completing the longest advance since August 2011, as a vote in the Black Sea peninsula to split from Ukraine and join Russia boosted a safe haven demand. The yellow metal for immediate delivery touched $1,383.53 an ounce as of 3:25 p.m. in Singapore after $1,383.05 on Friday trading session, showing a sixth increase for a week. Bullion earlier advanced to $1,392.22, the price unseen since Sept. 9.