A five hundred gram wrapped gold bar sits on top of one kilogram gold bars in this arranged photograph at Gold Investments Ltd. bullion dealers in London, U.K., on Tuesday, July 15, 2014. Gold held above a one-month low on speculation the biggest decline this year may spur demand as holdings in the largest exchange-traded product backed by the metal expanded to the highest level since April. Photographer: Chris Ratcliffe/Bloomberg via Getty Images