Live platinum market chart from Kitco

Rhodium: A Rare and Remarkable Metal

Rhodium, derived from the Greek word rhodon meaning “rose,” is one of the rarest and most valuable metals known today. British chemist William Wollaston discovered it in 1803, shortly after identifying platinum. With its silvery sheen and strong resistance to corrosion, rhodium offers both aesthetic appeal and industrial utility.

Primary Applications of Rhodium

Industries rely heavily on rhodium for critical functions. Car manufacturers use it in catalytic converters to transform harmful exhaust gases — such as unburned hydrocarbons, carbon monoxide, and nitrogen oxides — into less toxic compounds. This application alone drives consistent demand for the metal.

Beyond automotive use, rhodium contributes to mammography filters, electrical contacts, and nuclear reactor components, thanks to its high reflectivity and stability under extreme conditions.

Investment-Grade Coins and Bullion

Several national mints produce rhodium coins in proof quality, appealing to investors and collectors alike. These coins not only showcase the metal’s unique qualities but also offer diversification in precious metals portfolios.

This page automatically updates spot prices and features a curated selection of rhodium in coin and bullion form. The iframe below delivers the latest pricing data from trusted dealers.



No Rhodium Bullion Bar listings found. Try refreshing for new results.

Investing in Precious Metals

Rhodium, an element with the atomic number 45, boasts a treasure trove of characteristics that set it apart from other metals. Its exceptional corrosion resistance renders it impervious to the effects of time, a feature that has earned it a place in the prestigious PGM family. Its dazzling silver-white appearance is equally remarkable, making it an object of fascination for both numismatists and bullion investors.

The rarity of rhodium adds to its allure. This precious metal is one of the rarest on Earth, with annual production significantly lower than other PGMs like platinum or palladium. It is primarily extracted as a byproduct of platinum and nickel mining, further contributing to its scarcity. Such uniqueness makes rhodium an intriguing prospect for those seeking a diverse portfolio of precious metals.

Forms of Rhodium:

Rhodium bullion, like its more renowned counterparts such as gold and silver, is available in two primary forms:

Rhodium bars, the more conventional form of rhodium bullion, come in various sizes, typically rectangular or square-shaped. These bars are produced through a meticulous process involving the refining of raw rhodium ore. Following this, they are minted into standardized sizes and weights. Rhodium bars are available in a range of sizes, from as small as 1 gram to as substantial as 1 kilogram or even more.

In addition to their weight and dimensions, rhodium bars often bear inscriptions that denote their purity, with labels like “99.9% pure” being a common sight. These inscriptions are essential for transparency and provide buyers with confidence in the metal’s quality. Furthermore, a unique serial number is often incorporated into each bar, serving both as a mark of authenticity and a tracking mechanism for potential resale.