October 08, 2026

How to Tell If Silver Is Real: 925, Sterling Marks and Simple Tests

By Sasha Tarasova

Filed under Hallmarks, Dating & AuthenticationBuying GuidesCare, Sizing & Insurance

Short answer: to tell if silver is real, look first for a fineness mark such as 925, Sterling or a British lion passant, and for warning marks such as EPNS or "silver plate". Then check that a strong magnet does not pull it, and look at wear points for yellow or pink metal showing through. 925 means sterling silver: 92.5% pure silver. A jeweler's acid or XRF test confirms it.

Silver is easier to fake than gold, because it is cheaper to plate and because "silver" is often used as a colour rather than a metal. The good news is that genuine silver is well marked more often than not, and the honest home tests are simple. The bad news is that several popular ones, including the bleach and ice tests, either damage jewelry or prove very little. Here is what works.

What does 925 mean on silver?

925 means the metal is 92.5% pure silver, which is the sterling standard. The remaining 7.5% is usually copper, added because pure silver is too soft for most jewelry and flatware. A piece stamped 925, STERLING, STER or .925 is claiming to be solid sterling silver throughout.

Sterling has been the British standard for centuries, marked in England with the lion passant, a walking lion, since the sixteenth century. In America, sterling became the accepted standard for fine silver during the second half of the nineteenth century, with Tiffany & Co. among the first American firms to adopt it; much older Tiffany silver is marked "925-1000". Our vintage Tiffany guide covers how the house marked its pieces. Before that shift, much American silver was coin silver, around 90% silver.

Silver marks: what counts and what does not

These are the marks you will actually meet, and what each tells you.

Two traps. Nickel silver, German silver and alpaca contain no silver at all; the name describes the colour. And a number on its own can mean different things on different metals: 958, 875 and 833 are also gold fineness numbers. Our decoder of gold stamps and fineness numbers sets the full list side by side.

Mexican silver has its own conventions. Mid-century pieces often carry an eagle assay mark, and from around 1980 many carry a registration code of letters and numbers identifying the workshop, alongside 925. British and European hallmarks carry more information still, including assay office and date; our guide to reading a hallmark explains how.

How can you tell if silver is real at home?

You can rule out most fakes at home with marks, a magnet, a close look at wear, and a clean white cloth. You cannot confirm the exact standard at home. The table below sets out every test worth knowing.

Is real silver magnetic?

No. Silver is not magnetic, so a piece that pulls firmly toward a strong neodymium magnet is not solid silver, and is probably steel or iron underneath a plating. Like the gold magnet test, it only works in one direction: copper, brass, nickel silver and aluminium are also non-magnetic, so a piece that ignores the magnet has only proved it is not steel.

Test the body of the piece rather than the clasp, which may contain a steel spring. Our guide on how to tell if gold is real covers the same technique in more detail.

What does wear tell you about silver plate?

Solid silver wears evenly and stays silver-coloured all the way through. Silver plate wears through to a different metal at the points of greatest friction, and it usually shows.

• Look at the edges, high points, clasp and the underside of ring shanks with a 10x loupe.
• Yellow, brassy or pinkish-copper patches with a sharp boundary are base metal showing through.
• Green corrosion in crevices points to a copper-based core.
• Bubbling, flaking or peeling surface is typical of plating.

Do not mistake normal tarnish for wear. Sterling darkens in recesses over time, which is often left deliberately to show off engraving or chasing.

Does the white cloth test work?

Partly. Rub the piece firmly with a clean, soft white cloth. Real silver that has been exposed to air usually leaves black marks, which are silver sulfide, the compound that forms tarnish. No mark at all may mean the piece has just been polished, or that it is rhodium plated, or that it is not silver.

The weakness is that copper and brass also leave dark marks on cloth. Treat a black mark as consistent with silver, not as proof. It does no harm, and a polishing cloth is the right tool anyway.

What about tarnish, smell and the ice test?

These are weak clues, sometimes useful in combination:

• Tarnish colour. Silver tarnishes to golden-brown, then grey and black. Green or blue-green corrosion suggests copper or brass. But modern sterling is often plated with rhodium precisely so it does not tarnish, so absence of tarnish proves nothing.
• Smell. Silver has no smell. Brass and copper give a distinct metallic odour, especially on warm hands. Low reliability.
• The ice test. Silver conducts heat extremely well, so ice placed on a large silver object melts noticeably faster than on other metals. It works on a heavy flat tray or coin. On a ring or chain there is too little metal for the result to mean anything.

How does the density test work for silver?

The density test measures specific gravity, how heavy the metal is for its volume. Sterling silver is about 10.4, fine silver about 10.5, while copper is about 8.9, brass about 8.4 to 8.7 and nickel silver about 8.7. A difference of that size is measurable on a good scale.

1. Use only a solid, stone-free piece with no hollow sections, glue or enamel. Do not immerse pieces with pearls, opals or organic materials; see our guide on how to tell if pearls are real for why.
2. Use a digital scale reading to 0.01g.
3. Weigh the piece in air.
4. Zero the scale with a small cup of water on it.
5. Suspend the piece on a thread so it is fully submerged without touching the cup, and read the displaced weight.
6. Divide the weight in air by the displaced weight.

A result around 10.3 to 10.5 is consistent with sterling or finer silver. A result near 8.5 is a base metal. Small pieces give unreliable results because tiny errors swamp the answer.

Which silver tests should you avoid?

Skip the bleach test, home acid kits, file and scratch tests, and anything involving a flame.

• The bleach test. Real silver blackens rapidly in bleach. So do some other metals, and the bleach does lasting harm to the surface, to any stones, and to pearls and organic materials. It is a way of damaging a piece to learn very little.
• Home acid kits. Silver testing solution, applied to a filed spot, turns a characteristic colour depending on silver content. In a professional's hands it is fast and accurate. At home it means filing your jewelry and handling nitric acid, which burns skin and etches stones.
• Scratching or filing to look underneath removes metal permanently and devalues antique pieces.

A practical checklist for silver

1. Find every mark with a loupe: 925, Sterling, a lion passant, a fineness number, a maker's mark, and any EP, EPNS, SP or "plate".
2. Rule out non-silver names such as nickel silver, German silver, alpaca and silvertone.
3. Try a strong magnet on the body of the piece.
4. Inspect wear points for yellow, pink or green metal.
5. Rub with a white cloth and note any black residue.
6. If solid and stone-free, run a density test.
7. Skip bleach, acid, flame and scratch tests.
8. Confirm anything important at a jeweler with XRF or a professional acid test.

When should you see a professional?

See a jeweler, appraiser or silver specialist when a piece is unmarked, when marks and material seem not to match, when you are selling for metal value, and before you pay a price that depends on the piece being solid silver. An XRF reading is quick and does not mark the piece. For signed silver, maker's marks are exactly what counterfeiters copy, so final authentication belongs to the house or a qualified specialist; we are an independent dealer and not affiliated with any of the makers named here.

Plenty of genuine antique silver is unmarked, particularly small pieces, early American work and items whose marks have worn away. Our guide to dating jewelry without a hallmark explains what construction reveals. If you are buying, our note on what a dealer should disclose sets out what a straight seller will tell you about metal, and our guide to vermeil and other gold finishes covers gold-plated sterling.

Buying online raises the stakes, because you cannot handle the piece before you pay. Ask for close photographs of every mark, the weight in grams and the return terms in writing; our guide to buying antique jewelry online lists the rest. Victorian silver lockets and bangles are a particular area where plated and solid pieces sit side by side, and our antique lockets guide shows what good construction looks like.

Questions people actually ask

What does 925 mean on jewelry?

925 means the metal is sterling silver: 92.5% pure silver, usually alloyed with 7.5% copper for strength. It is the standard for most silver jewelry in Britain, the United States and Mexico. On a gold-coloured piece, 925 usually means vermeil or gold-plated silver. Like any stamp it is a claim, and fake 925 marks appear on plated jewelry.

Is sterling silver real silver?

Yes. Sterling silver is solid silver alloy containing 92.5% pure silver. The small proportion of copper makes it hard enough for jewelry and flatware, since pure silver is too soft for most uses. It is not plated, and it can be polished, repaired and resized like any solid precious metal.

Does real silver stick to a magnet?

No. Silver is not magnetic, so a piece that pulls firmly toward a strong magnet is not solid silver and probably has a steel core. Passing the test does not prove the piece is silver, though, because copper, brass and nickel silver are also non-magnetic. Test the body of the piece, not a clasp with a steel spring.

Is nickel silver real silver?

No. Nickel silver, also called German silver or alpaca, is an alloy of copper, nickel and zinc that contains no silver at all. The name refers only to its colour. It was widely used for flatware, costume jewelry and fittings, often with a silver plating on top, marked EPNS for electroplated nickel silver.

Does real silver tarnish?

Yes. Silver reacts with sulfur compounds in the air and on skin to form silver sulfide, which darkens the surface from golden-brown to black. Tarnish is normal and removable. However, much modern sterling is rhodium plated so that it does not tarnish, so a bright, untarnished piece is not evidence that the metal is fake.

What does EPNS mean on silver?

EPNS stands for electroplated nickel silver: a thin layer of silver deposited over a nickel silver base, which itself contains no silver. It was used widely for tableware and some jewelry from the nineteenth century onwards. It is silver plate, not solid silver, and it has little metal value.

Can a jeweler test if silver is real?

Yes, quickly. Most jewelers can use an XRF analyser, which reads the metal composition without marking the piece, or a silver testing acid applied to a small filed spot. Either will distinguish sterling from plated or base metal. For antique or signed pieces, ask for the non-destructive XRF reading first.

Every piece we list is described by metal and standard, and you can browse our antique and vintage jewelry with that in mind. If you want a particular antique or signed piece found and checked before you buy, our sourcing service does the searching. More on marks and standards sits in our hallmarks archive.