Fine Suisse Gold
Pick up any suisse gold bar and after the initial pulse of excitement that everyone feels when they handle bullion, you will find the words ‘Fine Gold’ embossed on the soft metal’s surface. This is a reference to the bullion’s purity as measured on the millesimal fineness scale which measures purity as parts per thousand. Whereas karat is often used to describe the purity of precious metals by the general public, it is not sufficient when measuring highly pure bullion. 24 karat gold is in fact anything over 99.90% pure.
On the millesimal fineness scale, 99.90% calculates to 999 parts out of a thousand and is also referred to as ‘Three Nines’ fine. Fine Suisse gold bars on the other hand are marked ’999,9′ which indicates a fineness of 99.99%, also known as ‘Four Nines’ fine and an extremely high purity content.
For the sake of completion, ‘One Nine’ fine equates to a fineness of 9000 which is less pure than 22 karat gold and ‘Two Nines’ fine equates to a fineness of 9900.
When it comes to fine suisse gold minted investment bars, the reference to fineness is largely redundant as the vast majority of such suisse gold bullion bars are minted to only the highest quality of 999,9 fineness.