Does Jewellery Tarnish? What Actually Causes It (And How to Avoid It)
By Serene Jewellery — tarnish-free 925 sterling silver and 18k gold-plated jewellery specialists. Updated September 2026.
Quick answer: Yes, most jewellery can tarnish — but whether yours will depends on the base metal, plating quality, and how it's cared for. Genuine 925 sterling silver and properly rhodium-plated 18k gold over silver, kept dry and away from harsh chemicals, can stay tarnish-free for years. Cheap alloy jewellery with thin gold flashing almost always tarnishes within weeks.
What Actually Causes Jewellery to Tarnish?
Tarnishing happens when metal reacts with air, moisture, sweat, or chemicals like perfume and chlorine. It shows up as dullness, discolouration, or that green mark some jewellery leaves on skin. The metals most prone to it are copper and brass — which is exactly what's hiding under a lot of cheap "gold" jewellery once the thin plating wears through.
Does Sterling Silver Tarnish?
Genuine 925 sterling silver can tarnish slightly over time because it's an alloy — 92.5% silver mixed with other metals for strength. However, good-quality sterling silver tarnishes far more slowly than costume jewellery, and a rhodium-plated finish (a hard, hypoallergenic metal) creates a protective barrier that dramatically slows the process, in many cases stopping visible tarnish altogether with normal wear.
Does Gold-Plated Jewellery Tarnish?
It depends entirely on what's underneath the plating and how thick that plating is. Gold-plated jewellery over a base metal like brass or nickel tarnishes quickly once the thin gold layer wears away, exposing the metal beneath. Gold plating over genuine 925 sterling silver (sometimes called vermeil) lasts significantly longer, because the silver base itself is far more skin-safe and slow to react than a cheap alloy.
How to Tell If Jewellery Will Tarnish Before You Buy It
- Check the base metal. Look for "925" (sterling silver) or "vermeil" rather than just "gold plated," which can mean plating over anything.
- Ask about the plating thickness. Thicker gold plating (measured in microns) lasts longer before wearing through.
- Look for a tarnish-free or rhodium-plated claim — and check if the brand backs it with a guarantee.
- Be wary of prices that seem too low for "real" gold or silver — quality plating costs more to produce.
How to Stop Jewellery From Tarnishing
- Keep it dry. Remove jewellery before showering, swimming, or washing dishes when possible — even tarnish-resistant pieces last longer with less water exposure.
- Avoid direct contact with perfume, lotion, and hairspray. Apply these first, then put jewellery on afterward.
- Store it properly. Keep pieces in a dry pouch or box away from direct sunlight and humidity, ideally separated so they don't scratch each other.
- Clean it gently. A soft, dry cloth after wear removes oils and residue before they can build up.
Jewellery That's Actually Tested Tarnish-Free
Every piece in the Serene Jewellery collection is 925 sterling silver or 18k gold plate over sterling silver, rhodium-plated, nickel and lead-free, and tested tarnish-free for everyday wear — including water exposure. That's not a marketing line we're not willing to back: every order comes with a 30-day money-back guarantee.
Our rings, necklaces, and bracelets are all built to this same standard, so you don't have to guess which pieces are safe to wear daily.
Frequently Asked Questions
Does gold-plated jewellery tarnish?
It can, particularly if the plating is thin or sits over a base metal like brass. Gold plating over genuine 925 sterling silver lasts significantly longer than plating over cheap alloys.
Does 925 sterling silver tarnish?
Genuine 925 sterling silver can tarnish slowly over time, but rhodium plating creates a protective barrier that slows or largely prevents this with normal wear.
Can you shower or swim with tarnish-free jewellery?
Jewellery that's genuinely tested tarnish-free and waterproof can typically handle water exposure including showering. It's still good practice to avoid prolonged exposure to chlorine or salt water where possible.
How do you know if jewellery is actually tarnish-free, not just marketed that way?
Look for specifics: the base metal (925 sterling silver), the plating type (rhodium or 18k gold over silver), whether it's nickel and lead-free, and whether the brand backs the claim with a guarantee rather than just a label.
