A. Chuan Journal — Buying Guide
Sterling silver is solid: 92.5% pure silver alloyed with 7.5% other metal, usually copper, all the way through the piece. Silver-plated jewelry is a base metal — often brass or copper — coated with a thin layer of pure silver, sometimes only a few microns deep.
The difference doesn't show much on day one. It shows a year in, when one piece has softened to a gentle patina and the other has started to reveal the metal underneath. Here's how to tell which is which before you buy.
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Definition
What "sterling silver" actually means
Pure silver on its own is soft — too soft to hold a ring's shape or an earring's fine detail over years of wear. Sterling silver solves this by alloying 92.5% silver with 7.5% of a harder metal, almost always copper. That ratio is fixed by definition: anything sold as sterling silver is 92.5% silver, top to bottom, not just on the surface.
Because the alloy runs through the entire piece, a scratch, a resize, or years of gentle polishing never expose anything other than more of the same metal.
The other side
What "silver-plated" means
Silver-plated jewelry starts with a base metal — brass, copper, or a zinc alloy — and adds a thin electroplated layer of silver on top. That layer can be anywhere from a fraction of a micron to a few microns thick, invisible to the eye and impossible to judge by looking.
Plating isn't a lesser category of jewelry — it's a different construction, built for a lower price point rather than for decades of daily wear. The honest way to shop either is knowing which one you're holding.
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Over time
How they wear differently
Solid sterling silver reacts to air and skin oils by tarnishing — a natural surface oxidation, not a flaw. A soft polishing cloth restores the shine each time, indefinitely, because there's more of the same silver alloy underneath.
- Sterling silver — tarnishes, then polishes back to bright silver.
- Silver-plated — the thin layer thins further at contact points (a ring's underside, a bracelet's clasp) until the base metal shows through, often as a yellow or pink tint.
- Once plating wears through, it can't be restored by polishing — only by re-plating.
Reference
Reading the hallmark
A hallmark stamp, usually on the inside of a ring band or near a clasp, is the most reliable way to tell the two apart without any special tools.
| Stamp | What it means |
|---|---|
| 925 / .925 | Solid sterling silver (92.5% silver) |
| Sterling / Ster | Solid sterling silver, spelled out |
| EP / EPNS | Electroplated (base metal, silver-plated) |
| "Silver plate" or "silver tone" | Plated or unplated base metal, not solid silver |
| No stamp at all | Worth asking the seller directly before buying |
We've covered the 925 stamp itself in more depth in what does 925 mean on jewelry, including how to spot a genuine one. If a listing doesn't mention a hallmark or a silver purity at all, that's usually the clearest signal it isn't solid sterling.
Before you buy
A quick way to check a listing
Look for the word "sterling" or the number 925 in the product title or description, not just "silver" on its own — "silver" alone is often used loosely to describe color rather than material. A listing that specifies 92.5% purity or shows a 925 stamp in a close-up photo is telling you something concrete; one that only says "silver-tone" or "silver-plated" is telling you the opposite.
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Getting started
Three pieces to start with
If you're building a small solid-sterling collection rather than replacing worn-through pieces, these are a reasonable place to begin.
For everyday wear
A floral drop earring in solid sterling, light enough for daily rotation.
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For layering
A fine pendant necklace that holds its detail without a plated layer to wear through.
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For gifting
A studded pair with a hallmark you can point to, if it's ever asked about.
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Common questions
How can you tell if jewelry is sterling silver or just silver plated?
Check for a hallmark stamp — 925, .925, or "Sterling" indicates solid sterling silver; EP, EPNS, or wording like "silver plate" or "silver tone" indicates a plated or unplated base metal. If a listing doesn't mention purity or show a stamp, treat it as plated until proven otherwise.
Does silver plating wear off over time?
Yes. The plated layer is only a few microns thick at most, and it thins with handling, especially at contact points like a ring's underside or a bracelet clasp. Once it wears through, the base metal underneath shows, and re-plating — not polishing — is the only way to restore it.
What hallmark stamps indicate real sterling silver?
Look for 925, .925, or "Sterling"/"Ster" stamped somewhere on the piece, usually inside a ring band or near a clasp. These indicate the 92.5% silver alloy runs through the whole piece, not just the surface.
Solid sterling costs more up front because there's more silver in it, not because of a markup on the idea of "real" silver. Start with one piece from our sterling silver collection and check the stamp yourself — it's the only proof that matters.
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