The short answer to that question is that gold is gold, no matter whether it comes from Australia, England, China, Canada, South Africa or anywhere else. But there is more to it than that, because not all gold investment items are made of pure 24k gold. That is especially true if you are investing in gold coins, not bullion bars, because many of them contain small amounts of other metals that have been added to make them more durable. That explains why some popular investment coins, like the American Eagle and the South African Krugerrand, are actually made of 22k gold – only .9167pure.