Generally the most economical way to produce bullion bars, resulting in a minimal premium over spot price. A majority of the world's bullion is held in cast bars due to the low production cost. They are often simpler in design and finish, with a more natural look and are designed for trading rather than collecting.

Minted bars often feature intricate designs pressed into the bars utilising the same technologies and equipment used in coin production. They are often produced in a rectangular shape to minimise waste size, but a variety of shapes and finishes are produced particularly for the collector sector. Generally they are only produced in smaller sizes and are often not seen in 1kg+ bars.

When we refer to coins, we are talking about bullion that is also legal tender, with a denominated fiat value from a sovereign nation. Coins are often highly sought after due to their additional collectability and lower risk of counterfeiting because of the additional laws around currency. Generally, coins incur the highest premium over spot, and the most common size produced is 1oz, though special issues can be found in extreme sizes. For example, The Perth Mint produces a 10kg Lunar Silver coin annually.produced is 1oz though special issues can be found in extreme sizes. For example The Perth Mint produces a 10kg Lunar Silver coin annually.