925 Sterling Silver vs Silver Plated: What's the Real Difference?
Don't be fooled by looks — here's what you need to know before buying silver jewellery.
You are shopping for a silver necklace. One is priced at £12. Another is £75. They look almost identical in the photos. Both shine. Both say "silver." So what exactly is the difference — and does it actually matter? The answer almost always comes down to one thing: whether it is 925 sterling silver or silver plated. Understanding this single distinction could save you from real disappointment, real money wasted, and jewellery that fades, peels, or leaves a green mark on your skin within weeks of wearing it.
What Is 925 Sterling Silver?
925 sterling silver is a precious metal alloy made of 92.5% pure silver and 7.5% other metals — typically copper. The 925 hallmark stamped on a piece is an internationally recognised guarantee of exactly this composition.
The crucial detail: sterling silver is solid metal all the way through. From the surface to the core, every layer of the piece is made from the same 92.5% silver alloy. This is what gives it its durability, longevity, and genuine precious metal value.
Pure silver on its own — marked 999 or "fine silver" — is actually too soft for everyday jewellery. It bends and scratches under minimal pressure. The addition of copper creates a metal strong enough to hold intricate settings and gemstones, durable enough for daily wear, and still genuinely, beautifully silver. That is sterling.
925 sterling silver is not a silver-coloured metal. It is not a coating. It is a solid precious metal, the same all the way through — hallmarked, internationally recognised, and built to last.
— AG925 JewelleryWhat Is Silver Plated Jewellery?
Silver plated jewellery is made from a base metal — usually brass, copper, zinc, or nickel — with an extremely thin layer of silver applied to the outside through a process called electroplating. An electric current deposits silver ions onto the surface of the base metal, bonding a microscopic silver film to the outside.
The silver coating is typically just 0.5 to 5 microns thick. For perspective: a single human hair is approximately 70 microns wide. The silver on a plated piece is so thin it is essentially invisible — which is precisely why plated jewellery can look identical to sterling silver in product photos and display cases, but behave very differently the moment you start wearing it.
Silver plated jewellery does contain a trace of real silver — but only as a surface finish. The core is a base metal of negligible value. This is the fundamental difference that every buyer should understand before spending a penny.
Sterling Silver vs Silver Plated —
Every Difference That Matters
Here is how the two compare across every factor that genuinely affects your buying decision:
| Feature | 925 Sterling Silver | Silver Plated |
|---|---|---|
| Silver content | 92.5% solid silver throughout | Trace amount — surface coating only |
| Hallmark | 925, S925, Sterling, Ster | EP, EPNS, or no marking at all |
| Durability | Lasts decades with care | Fades and peels within months |
| Tarnishing | Tarnishes slowly — easily polished | Tarnishes quickly — hard to restore |
| Skin safety | Hypoallergenic for most people | Can cause reactions as plating wears |
| Can be repaired | Yes — by any jeweller | No — base metal exposed |
| Resale value | Real intrinsic silver value | No resale value |
| Best for | Daily wear, gifts, heirlooms | Single-use fashion, costume pieces |
The Real Problems with
Silver Plated Jewellery
Silver plating wears off. It is not a question of if — it is a question of when. And when it does, the consequences go well beyond cosmetic disappointment.
Everyday activities — washing hands, applying lotion, swimming, sweating — gradually wear the plating away. Within weeks or months, the base metal underneath shows through in dull, patchy discolouration.
Once the plating wears off, your skin touches the base metal directly — usually brass, copper, or nickel. This causes the familiar green stain, and for those with metal sensitivities, rashes and allergic reactions.
The trace amount of silver on the surface is negligible monetarily. Silver plated jewellery carries virtually no resale or intrinsic value — unlike sterling silver, which is a traded precious metal.
When sterling silver is scratched or worn, a jeweller can polish and refinish it — because the silver runs all the way through. With plated pieces, any surface damage exposes the base metal and makes proper restoration impossible.
Over any meaningful period of time, sterling silver is not the expensive option. It is the cheaper one.
How to Tell the Difference
Before You Buy
Whether shopping in-store, online, or inheriting a family piece — here are the most reliable ways to know exactly what you are looking at.
Check the Hallmark — The Most Reliable Method
Genuine sterling silver is always stamped. Look for these marks on the inside of rings, the clasp of necklaces, or the back of earring posts. On smaller pieces, use a magnifying glass — the stamp will be there.
Four More Ways to Check
Question the price. If a "silver" piece is priced at a few pounds or dollars, it is almost certainly not sterling. Genuine silver reflects the real cost of a precious metal. It can be affordable — but not suspiciously cheap.
The magnet test. Silver is not magnetic. Hold a strong magnet near the piece — if it is attracted, the piece contains iron or steel and is definitely not genuine silver. Note: this only detects certain base metals, so use it alongside other checks.
Look at the edges and joins. On plated pieces, the coating wears first at high-contact points — ring shanks, bracelet clasps, necklace links. If you see a darker base colour showing through at these points, it has been plated.
Ask the seller directly. A reputable brand will always clearly state whether a piece is solid sterling or plated. Vague answers, deflection, or the absence of hallmark information are all red flags worth acting on.
Which Should You Choose?
The honest answer depends entirely on what you are buying the jewellery for. Here is a clear guide:
- You need it for a single event — a costume, a performance, a guest outfit
- You are trying a style before committing to sterling
- You fully understand it is temporary and will not last
- You are not wearing it directly against skin regularly
- You plan to wear it daily or regularly
- You have sensitive skin or metal allergies
- You are giving it as a meaningful gift
- You want something that holds its value
- You want something to keep for years or pass down
What About Silver Filled?
You may also come across the term silver filled. This sits somewhere between plated and sterling — it has a thicker layer of silver bonded to a base metal core, making it more resilient than electroplated pieces.
However, silver filled is still not solid silver. It does not carry the 925 hallmark. It does not retain the same value or longevity as genuine sterling silver. It is better than plated for everyday wear, but it is not a substitute for the real thing — and a reputable jeweller will always be transparent about the difference.
Why AG925 Works Exclusively
with Certified Sterling Silver
At AG925 Jewellery, the decision to work only with certified 925 sterling silver was not a compromise — it was a commitment made at the very beginning and held without exception since.
Our semi-precious stones — turquoise, labradorite, amethyst, moonstone, garnet — are set by hand and deserve settings that match their quality. Plated metal would not hold the stones properly, would degrade around them, and would undermine everything the piece is meant to be.
Every piece we make is hallmarked 925. Every piece can be professionally cleaned, polished, and repaired. Every piece is designed to be worn for years — not months — and to mean something to the person wearing it.
Every AG925 piece is hallmarked 925, hand-set with genuine semi-precious stones, and made to last a lifetime.
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