Platinum is a very scarce precious metal, much scarcer then gold or silver, that has not been traded for quite as long as gold and silver have. For that reason there are not as many options for the bullion buyer who wants to acquire platinum as there are for gold and silver.
Platinum has in recent years traded for close to the price as gold, even less sometimes, but it has also at times been much more expensive than gold.
In addition to platinum bullion coins issued by the U.S. Mint and Royal Canadian Mint and some other mints, several precious metal producers make platinum bars. These come in either smaller sizes like 1 or 2 grams bars, or 1 and 10 oz. and sometimes kilo bars. The companies that produce platinum bars include Credit Suisse, Valcambi, and PAMP Suisse, among others. These companies make high quality bars that come sealed in plastic and have their exact weight and purity indicated and also include assay certificates.
Platinum bars are a popular way to invest in this metal because they are sold at a small premium over the spot price of the metal and are not difficult to obtain, whereas platinum coins are not always readily available.
Palladium is another scarce white metal that is often used as a substitute for platinum in applications like catalytic converters and electronics because it is less expensive than platinum.
As with platinum, there are not a great number of palladium coins, so investors often opt for palladium bars from PAMP, Valcambi, and others. As with other bullion bars, palladium bars are a great choice for their low premium over melt value, availability, and easy storage.