Platinum bullion refers to pure platinum that is produced in the form of bars or ingots, typically weighing one ounce or more. It is valued for its rarity and industrial applications, including use in catalytic converters, electronics, and jewelry. Investors often purchase platinum bullion as a way to diversify their portfolios and hedge against inflation. Platinum bullion is usually stamped with its weight and purity, often 99.95% pure. It is traded on various commodities markets, and its price can fluctuate based on supply and demand, similar to other precious metals like gold and silver.