The hardest natural material, used in jewelry as well as cutting, grinding, and drilling tools in industry.
One of the rarest and most expensive precious metals, used in catalysts, jewelry plating, and industrial applications.
Essential in automotive catalytic converters, electronics, and hydrogen purification.
A dense, corrosion-resistant metal used in catalytic converters, jewelry, and medical devices.
Known for its excellent conductivity and reflectivity. Used in jewelry, coins, electronics, and solar panels.
A highly valuable metal prized for its rarity, malleability, and conductivity. Widely used in jewelry, finance (bullion and reserves), and electronics.
