For this reason, it must be assumed that platinum was first used around 3000 BC. Today, metallic platinum is practically no longer mined. Mines exist only in South Africa. In the production of non-ferrous metals such as copper and nickel, the platinum metals occur as a by-product of nickel refining. Five by-product metals are known in the platinum group. Rhodium, osmium, iridium, palladium and ruthenium. These by-metals are so similar to platinum that they initially caused great difficulties in pure extraction. Platinum is a corrosion-resistant, soft and malleable precious metal. For the production of high-quality wedding rings, as well as engagement rings, it is also suitable because of its high tarnish resistance, durability and its rarity. We process platinum in e.g. the Mokume Gane wedding rings Seraya, as well as in our zodiac rings, but also in engagement rings.