24 karat gold is 99.9% pure gold — the highest purity available. It has a rich, deep yellow color and is the standard for gold bullion bars and coins. 24K gold is softer than lower karats, making it less common in everyday jewelry but the preferred choice for investors and in markets like India, China, and the Gulf states. Use the calculator above to find the current melt value of your 24K gold in any currency.