Counterfeit silver is one of the most common problems in the bullion market, and most fakes are convincing enough to fool you in a photo. The good news: physical silver has a few very specific properties, and cheap fakes almost never reproduce all of them at once.
Here are six tests you can run at home, in order of how quickly they catch a fake.
1. Weigh it — the fastest test of all
One troy ounce of .999 silver weighs 31.1 grams. Note that this is a troy ounce, not the 28.35 gram avoirdupois ounce used for food. Almost every fake silver coin or round is either a plated base-metal core (too light) or a brass alloy sized to match (too heavy).
Use a digital scale that reads to 0.01 g. If a coin marked “1 oz” does not land within about 0.1 g of 31.1 g, stop there.
2. The magnet test
Silver is not magnetic. A strong magnet will not stick to it.
Two things to watch for:
- If the magnet snaps onto the coin, it contains iron or steel under plating. It is fake.
- If the magnet slides off slowly, as if it is being dragged by a weak force, that is normal for thick silver — it is diamagnetic. That is not a problem.
The magnet test only rules out obvious steel-core fakes. It does not prove a coin is silver.
3. The ice test
Silver conducts heat better than almost any other metal you have in your house. Place an ice cube on a flat silver bar or a large silver round and it will melt noticeably faster than on a steel or copper item of similar size.
It is an easy demonstration but not precise — use it as a supporting signal, not proof.
4. The sound test
Balance a coin on your fingertip and tap it with another coin or a pencil. Genuine silver produces a clear, sustained ring that lasts a second or more. Plated copper and steel produce a dull thud with almost no resonance.
This works best with larger silver pieces. Small thin coins are harder to judge.
5. Look at the details and the edge
Fakes usually fail on detail, not on design. Look for:
- Soft or mushy lettering — a real mint strike is sharp and even.
- Blurry fine lines — fur, feathers and leaf veins are where casting shows.
- Edge reeding — the reeds should be evenly spaced and clean. Casting leaves rounded, uneven reeds.
- Wrong proportions — compare thickness against a coin you trust.
- Missing or wrong mint marks — small details are the first thing counterfeiters skip.
A cheap jeweller’s loupe or your phone’s macro camera is enough for this.
6. The acid test (last resort)
Silver testing acid, or a nitric acid spot test, reacts with silver and leaves a mark on the tested spot. It works, but it is destructive — you are permanently damaging the item you are testing, and it will no longer be sellable as uncirculated.
Use it only on scrap or generics you already suspect, and always in a ventilated space with gloves and eye protection.
What actually protects you
No home test is as reliable as buying from a source that stands behind the product. An electronic precious metals verifier will read silver through the capsule without damaging it, and that is what professional dealers use.
If you are buying online, the real questions are: does the seller state the exact weight and purity, do they publish clear photos of the actual item, and do they offer a written authenticity guarantee with a refund if an item proves counterfeit? Price far below the market is not a bargain — it is a warning sign.
Every item we sell is guaranteed genuine .999 or .9999 fine silver, and covered by our 30-day authenticity guarantee. Browse our silver rounds and coins or our silver bars.