What is Rhodium Plating? Everything You Need to Know

What Rhodium Actually Is

Rhodium is a rare, naturally white metal belonging to the platinum group, alongside platinum, palladium and iridium. It is not mined on its own; it occurs only in trace amounts within platinum and nickel ore. South Africa, fittingly, is one of the world's largest sources of platinum group metals, which is part of why rhodium is so familiar within the local jewellery trade despite being scarce and expensive globally — frequently more expensive per ounce than gold or platinum themselves.

What makes rhodium so valuable to jewellers specifically is its combination of properties: it is extremely hard, highly reflective, naturally hypoallergenic, and resistant to tarnish and corrosion.

Why White Gold Needs It

White gold is not naturally bright white. It is made by alloying yellow gold with white metals such as palladium, silver or nickel, which produces a pale, slightly warm-toned metal — closer to a soft champagne than the icy white most people picture.

What Happens as It Wears

Because the rhodium layer is so thin, it gradually wears down with everyday contact — hand washing, fabric, friction against other jewellery. As it thins, the warmer, slightly yellow tone of the white gold underneath starts to show through, and the piece will look less bright than when it was new.

This is completely normal and not a flaw in the jewellery. Replating, sometimes called "redipping," restores the original bright finish by applying a fresh layer of rhodium, and is typically needed every one to two years depending on how often the piece is worn.

Rhodium on Sterling Silver

Rhodium plating is also commonly used on sterling silver for the same reasons: it brightens the silver's natural tone and adds a protective barrier against tarnish, since silver on its own oxidises when exposed to air and moisture. A rhodium-plated silver piece will stay brighter for longer between cleanings than untreated silver.

Is Rhodium-Plated White Gold "Less Real"?

Not at all — it is simply how white gold is finished industry-wide, and has been for decades. Some clients prefer the look of white gold as the plating naturally wears, since it settles into a warmer, slightly more vintage tone over time. Others prefer to keep the bright white look maintained through regular replating. Neither preference is more correct; it comes down to how much upkeep you want and which tone you're drawn to.