Platinum investment involves purchasing platinum, a precious metal known for its rarity and industrial applications. Investors often buy platinum in the form of bars, coins, or exchange-traded funds (ETFs) to diversify their portfolios and hedge against inflation. The value of platinum can fluctuate based on market demand, economic conditions, and its use in industries like automotive and jewelry. Unlike gold and silver, platinum is less commonly traded, making it a unique option for those looking to invest in precious metals.