Gold climbed above $1,400 an ounce to the highest price in almost seven weeks in London as unrest in the Middle East and concern inflation will quicken boosted demand. Silver reached a 30-year high on $33 and palladium advanced. Libyan leader Muammar Qaddafi’s son Saif al-Islam Qaddafi called on protesters to engage in dialogue or face a civil war that risks “hundreds of thousands of dead.” In the latest step to curb inflation, China’s central bank said Feb. 18 it would raise reserve requirements for lenders as of Feb. 24 after boosting interest rates earlier this month. “The mix of Middle Eastern jitters and inflation concerns continues to create a favorable price environment for the precious metals, particularly gold and silver,” James Moore, an analyst at TheBullionDesk.com in London,...