How to Tell if Something is Silver

Maybe you have a family heirloom that’s been passed through generations, or stumbled upon a lucky find in an antique store. Either way, if you own something that looks silver, but aren’t sure if it’s plated or made from other metals, you’re not alone.

In this blog, we share some tips for how to identify silver items vs silver plated items. We’ll cover stamps and hallmarks as well as some simple tests you can do at home.

The first step: Check for stamps & hallmarks

The easiest way to spot genuine silver is to look for hallmarks or other stamps. These are small symbols or numbers that are struck into the metal, usually in inconspicuous areas like the underside of a tray or the inside of a ring band.

Hallmarking silver is a legal requirement in many countries. In the United Kingdom, for example, the Hallmarking Act of 1973 mandates that all commercially sold silver items (excluding coins and investment bars) must be officially hallmarked. These marks act as a consumer protection guarantee that proves the item has been independently tested for purity.

The minimum hallmarks required on silver items in the UK are the assay office stamp, maker’s mark, and fineness (usually contained in an oval). In countries like the United States, only the maker’s mark is needed, though many manufacturers and jewellers will also stamp the fineness.

Silver purity marks (fineness)

The fineness mark tells you exactly how much pure silver is in an item:

• 925 or ‘Sterling’: This is the global standard for high-quality jewellery and silverware, indicating 92.5% pure silver.
• 958 (Britannia Silver): This is a higher grade of silver often found in British pieces made between 1697 and 1720, or in special modern commemorative editions. It signifies 95.8% pure silver.
• 800, 830, or 900: These are common European or Coin silver grades, often found in vintage items from Germany, Scandinavia, or South America.

See More: The Fineness and Purity Of Silver Explained

Understanding the British Hallmarking System

British silver is especially renowned for its rigorous and detailed hallmarking system, which typically includes at least three (and often five) distinct stamps:

1. The Standard mark (purity): This symbol confirms the silver grade. For English Sterling Silver, look for the Lion Passant (a lion walking with one paw raised). In Edinburgh, you might see a Thistle, and in Dublin, a Crowned Harp.
2. The Town mark (origin): This shows you which Assay Office tested the silver. Common town marks include a leopard’s head for London, an anchor for Birmingham, a rose for Sheffield (historically a crown), and a castle for Edinburgh.
3. The Maker’s mark: This is usually a set of initials belonging to the silversmith or company that manufactured the piece. It allows collectors to trace an item back to a specific workshop or famous designer.
4. The date letter: This represents the year the silver was tested. Each office uses a letter of the alphabet that changes every year, cycles through different fonts (e.g. Gothic or Roman), and sits inside different shield shapes. Note: You must first identify the Town Mark, as a London A will represent a different year than a Birmingham A.

Learn More: Silver Hallmarks - Identifying Silver Marks

What if there are no hallmarks?

If an item doesn’t have any hallmarks, it doesn’t necessarily mean that it’s not made from silver. The item could still be silver-plated, made from foreign silver (e.g. countries with no hallmarking laws), or it may be an antique or handmade item.

In this case, there are a number of tests you can do to confirm silver authenticity.

Magnet test

Silver is not a magnetic metal, so one of the simplest ways to check if an item is silver is to hold up a magnet and see if it attracts!

How to do it: You'll need a strong magnet, so a fridge magnet won't work. You can usually find powerful magnets (like neodymium magnets) at hardware stores. Place your silver items on a non-magnetic surface and slowly bring the magnet towards them.

The result: Genuine silver won’t be attracted to the magnet. If the item snaps to the magnet or feels a strong pull, it means it has a ferromagnetic core (like iron or nickel) and is likely silver-plated or a complete fake.

Note that there are other non-magnetic metal alloys out there, like lead and copper, so this test won't always 100% prove that your item is genuine. It's best used alongside other tests.

Ice cube test

Silver has the highest thermal conductivity of any common metal. In fact, it’s so efficient at moving heat that it can melt an ice cube as if it were a hot stovetop, even at room temperature!

How to do it: Place an ice cube directly on the silver item. For a controlled comparison, it’s worth placing a second ice cube on a different metal or on a wooden surface.

The result: If your item is made from genuine silver, the ice cube will begin to melt almost instantly. It should be melting visibly faster than the comparison cube.

Sensory tests

If you’re lacking any magnets or ice cubes, you can just use your bodily senses to test for silver:

• Sound test: Gently tap your item with a metal coin. If it’s made from genuine 925 silver, it should produce a distinct, high-pitched, clear ringing sound that lingers for a second. If it’s a base metal, it’ll often just produce a dull thud.
• Odour test: Real silver is completely odourless. If you can pick up on a metallic scent or a hint of sulfur, then the item is likely silver-plated or made from a different alloy.
• Flake test: Have a look at your item and see if you can spot any areas where the surface might be peeling or flaking. If you see a different coloured metal underneath, then it’s a clear sign that the item is silver-plated.

Polish test

Silver is a reactive metal that oxidises when exposed to air, forming a black layer known as tarnish. If your silver item is genuine, it should have a thin layer of tarnish or discolouration around it.

How to do it: Take a soft, white polishing cloth and rub a tarnished area of the item.

The result: If a black residue rubs off on the cloth, it’s a strong indicator that the item is made from real silver. If the cloth stays clean or only picks up dirt, the item may be made from a non-reactive metal like stainless steel.

See More: Why Do Silver Coins Tarnish and How to Clean Them

Advanced chemical tests

These tests involve using chemicals that may slightly damage your silver item, so they should only be used as a last resort or on inconspicuous spots.

Nitric acid test

Nitric acid was the historic standard when it came to testing silver. It involves identifying silver through a chemical reaction, which may corrode or damage the item slightly. Be sure to approach this method with caution, wearing gloves and safety glasses, and working in a well-ventilated area to minimise exposure to fumes.

How to do it: Apply a tiny drop of nitric acid to the metal, using a pipette or cotton swab.

The result: Genuine silver should create a creamy/milky white reaction when in contact with the acid. Green suggests silver-plating over a base metal, while red is a sign of copper content.

Vinegar test

This is similar to the nitric acid test, using the acidity from vinegar to react with non-silver metals and cause discolouration.

How to do it: Mix equal parts vinegar and baking soda into a paste and use a cloth to rub it carefully on your silver item.

The result: If the cloth turns black or green, it suggests the item is not made from sterling silver.

Bleach test

Silver turns black almost instantly when it comes in contact with bleach. You can polish this tarnish away, but there’s still a chance it will leave tiny scratches.

How to do it: Place a tiny drop of bleach on your silver item.

The result: If it instantly turns black, it means it’s made from genuine silver. If nothing happens, it may be fake silver.

Keep Reading: How to Tell The Difference Between Real and Fake Silver

Professional silver testing

While all the above tests can be reasonable methods for identifying genuine silver at home, we always recommend sending your item to a professional assayer who can determine the purity and composition of precious metals.

Most bullion dealers and appraisers these days use XRF Spectrometers, which can determine an item’s exact chemical makeup within seconds. These devices fire high-energy X-rays at an item, causing atoms to emit secondary fluorescent X-rays. Each element (e.g. silver, copper, nickel) emits its own unique energy signal, which is picked up by the detector without damaging the sample.

You end up with a reading of the exact percentages used, e.g. 92.54% silver, 7.42% copper.

When to seek professional help

When is it worth sending your silver item for professional testing? We suggest skipping the above at-home tests and going for non-desctructive tests when it comes to:

• High-value or sentimental heirlooms: If you’ve inherited an antique piece that could be worth thousands of dollars, it’s not worth potentially damaging it with any of the at-home tests
• Legal or insurance requirements: If you’re adding silver to a home insurance policy or settling an estate, you’ll need a legitimate Certificate of Authenticity, which you can only obtain from a professional
• Inconclusive DIY results: If your magnet doesn’t stick, but the ice doesn’t melt quite fast enough, a professional will be able to clear up the ambiguity and tell you exactly what your item is made from.

How to tell if something is silver: FAQs

Does a 925 stamp mean a silver item is real?

The 925 stamp is the standard mark for sterling silver (92.5% purity), however it can easily be faked so it’s not always a guarantee that the item is genuine. If you’re unsure whether your silver is real, try a magnet or ice cube test.

Can I use the ping test on silver coins?

Yes, you can use the ping test (sound test) to check if a silver coin is authentic. To do this, balance the silver coin on your finger and gently tap it with another coin. It should produce a clear, bell-like ring. If you just hear a dull clunk, then it may be made from a base metal.

Does silver ever stop tarnishing?

No, tarnishing is a natural chemical reaction to sulfur in the air. You won’t be able to stop it from happening entirely, but you can slow it down by carefully storing your silver in airtight containers.

Is silver magnetic?

No, pure silver is not magnetic. If you have a ‘silver’ item and it attracts a magnet strongly, then it’s more than likely to be silver-plated and not made from pure silver.

Buy authentic silver investment products

If you’re looking for genuine, investment-grade silver products, StoneXBullion can help. As the leading precious metals dealer in the UK and Europe, we only stock the highest-purity silver coins and bars from the world’s most prestigious mints and refineries.

Browse our selection now and invest in silver with peace of mind.