The purest form of gold - the 24-karat gold - is available in bullions, bars and coins. However, when buying 24-karat gold, it is also important to check its fineness. There are two ways to ...

But not all gold is created equal. For instance, some jewelry might be 18-karat gold, which means it's only 75% pure gold, with 25% alloy content. In that case, the price you'll fetch for that 18 ...