Platinum – $40,000/Kg

Platinum is a very famous precious metal that is primarily used for jewelry and car parts. In terms of composition, it is one of the purest metals out there, with over 95% purity, which is also the reason why it is more expensive than its counterpart, silver.

Platinum is also a very efficient metal, as it is used as a catalyst converter for luxury cars, buses, and trucks. Initially used as a coin metal, the uses of Platinum were slowly discovered in the Victorian age where it was utilized in jewelry, weapons, and ointments.