Today, physical silver is typically bought in coin or bar form, with the international standard set at 999.0+, meaning that the products are 99.9% or more, pure silver. In practical terms, owing to its lower price per ounce, many ABC Bullion investors prefer physical silver, as it is the most price accessible of the precious metals. Adelaide – 08 8223 5885 SA's largest Perth Mint Distributor by volume. We can also buy back your gold and silver bullion, so when you want to take advantage of your investment contact us for our competitive buy back prices (Based on New York Stock Exchange spot price). Buying silver rounds from Bullion Exchanges provides investors with a great option to invest in silver bullion without having to pay exorbitant premiums. The value is passed along to the buyer who is able to purchase silver of the highest content and purity.