What Is Rhodium Plating on Silver Jewellery?

Rhodium plating is a very thin layer of rhodium metal applied over sterling silver to give it a brighter, mirror-like white finish and extra scratch resistance. The piece underneath is still genuine 925 silver, rhodium just sits on top as a hard, reflective coating, the same way it's used on white gold to keep it looking bright.

What exactly is rhodium?

Rhodium is a rare, silvery-white metal from the platinum family, and it's actually harder and more expensive per gram than both silver and gold. Because so little is needed to coat a piece of jewellery, a plating layer is only a few microns thick, thinner than a human hair, but that thin layer sits at roughly 6 on the Mohs hardness scale, well above sterling silver's 3, which is exactly why it resists scratching so well.

Why do jewellers plate silver with rhodium at all?

Three reasons, mainly: it makes the piece brighter and whiter than sterling silver's natural tone, it adds a layer of scratch resistance on top of the softer silver underneath, and it slows tarnish since rhodium itself doesn't react with sulphur in the air the way silver's copper content does. Rings and pendants that get handled constantly benefit the most, since that's where scratching and everyday tarnish show up first.

Does rhodium plating change how the silver performs underneath?

No, the base metal is exactly the same 92.5% silver, 7.5% copper alloy either way. Plating is purely cosmetic and protective on the surface; it doesn't change the purity, weight, or hardness of the silver underneath. If you've read our guide on 999 vs sterling silver, the comparison there still applies fully to a rhodium-plated piece.

How long does the plating actually last?

It depends on wear, but a rhodium layer typically holds up well for one to three years of regular use before it starts to thin in high-contact spots, the underside of a ring, for example, sees far more friction than a pendant that mostly just hangs still. You'll notice it wearing off as a slight yellowing or dulling in those spots rather than an even fade across the whole piece, since it wears unevenly based on contact.

How do you care for a rhodium-plated piece?

Treat it more gently than plain sterling silver, since the plating is thin. Avoid chlorine, perfume sprayed directly onto the piece, and abrasive cleaning cloths or pastes, since these all speed up how fast the layer wears through. A soft, dry cloth for everyday wiping is enough. Once the plating does wear off after a few years, a jeweller can re-plate the piece, it's a normal part of owning rhodium-plated jewellery long-term, not a sign anything went wrong. Our full silver care guide covers day-to-day cleaning for both plated and unplated pieces, and our storage guide has tips on keeping plated pieces bright for longer between wears.

How do you know if a piece is rhodium-plated or plain sterling silver?

Plain sterling silver has a warmer, slightly softer white tone and will show gradual tarnish over time. Rhodium-plated pieces stay brighter and whiter for longer, then show wear as thinning in specific contact points rather than an all-over darkening. If you're unsure, the listing should say so, the same way it should state purity and weight, per our guide to identifying genuine 925 silver. Browse rings and pendants at Arumayi.

FAQs

Is rhodium-plated silver still real silver?
Yes, the base is genuine 925 sterling silver; rhodium is just a thin, hard, reflective layer on top of it.

Does rhodium plating stop tarnish completely?
It slows tarnish considerably and keeps silver brighter for longer, but once the thin plating wears through in a spot, the silver underneath can tarnish there like normal.

How long does rhodium plating last?
Typically one to three years of regular wear before it needs re-plating, though high-friction spots like the underside of a ring wear faster than a pendant.

Can rhodium plating be redone?
Yes, once it wears off, a jeweller can strip and re-plate the piece, restoring the bright white finish.

Is rhodium harder than silver?
Yes, considerably, rhodium sits at around 6 on the Mohs hardness scale compared to roughly 3 for sterling silver, which is why the plating resists scratches so well.