Investment-grade gold bars and coins usually contain 99.99% pure gold (often marked as .9999 fine), ensuring maximum value and liquidity. The premium you'll pay above the spot price — known as ...

Explore the fascinating process of creating the largest and most expensive pure gold bars in a gold mint. From melting gold to producing 99.99% pure bars, this video showcases the steps of gold ...

We're after pure gold, but rock that contains gold also includes ... This was a time-consuming job because we needed a very fine powder — much finer than even sand. (We wore out several pairs ...