Serial numbers are then stamped on the bars for ... A: The first step to making bullion bars is refining or purifying the ...

The weight of a gold bar or bullion is typically stamped on its surface ... which are not usually pure gold. Selling gold bullion is no harder than selling any other gold item.

Gold bullion is gold in its purest physical form fashioned into bars, coins, rounds or ingots. It is typically 99.5% to 99.99% pure ... the bars carry the stamp of the mint or refinery that ...

Ingots are stamped with purity, origin, weight, and where the bullion was minted. Not all gold is equal, especially regarding purity and weight. Investment-grade gold is at least 99.5% pure.