Gold bars are generally at least 99.9% pure, with 99.99%, or 24-karat gold, being among the purest forms of gold available for retail.
Cast bars are generally cheaper than minted bars because they are quicker to produce and require less handling. Minted bars are usually more complex to create, often resulting in higher premiums. Regardless of weight or type, most gold bars today are composed of at least 99.9% pure gold. Some bars are available with an inscribed serial number in addition to being packaged in an assay card. In such cases, the assay card will also reflect the individual serial number as engraved onto the surface of the bar.
In summary, gold bars are generally pure gold, with at least 99.9% purity. They can be made through casting or minting, with cast bars generally being cheaper and having unique imperfections, while minted bars have smooth, even surfaces and traditionally higher premiums. Gold bars are available in a variety of weights and designs. Some are even legal tender!
