Bullion coins.
Bullion coins are for investment purposes, and are a good alternative to a standard gold bullion bar. The different sizes, styles and themes also make them easier to buy and sell in small quantities. Some bullion coins can be considered collectors coins so can make them more valuable.
Brilliant Uncirculated coins.
Brilliant Uncirculated coins are normally a higher standard than bullion coins due to the dies used to strike the coins being hand finished and polished. They have slightly less definition than a proof coin.
Proof coins.
Proof coins are considered the highest quality of all the coins, mainly due to the extra attention and care put into producing each coin.
When it comes to the dies used to strike these proof coins, each one is hand finished and extra care has been taken to remove any sight of imperfection.
There is also a smaller volume of proof coins struck per hour and the dies used are re-polished more regularly than the uncirculated or bullion coins.
These coins can fetch a higher premium due to them being potentially more collectable.