The World Gold Council provides an interactive gold price chart that displays the prices of different quantities of gold in various currencies. Real time and historical prices of various weights of gold are displayed on 24hGold.com, with a comparison of prices in the United States, Europe and London.
Most charts that track the selling price of gold around the world include only the price of pure gold, which is 24 karats. The price for 14-karat gold can be calculated by multiplying pure gold's price by 58.3 percent.
Gold is traded in over-the-counter transactions, exchange-traded funds and gold futures and options. The most significant commodity exchanges for gold are the U.S. COMEX and the Tokyo Commodity Exchange, while the London Bullion Market Association is the global center for over-the-counter transactions.