Avoiding Counterfeit Gold & Silver
Straight answer
Counterfeit gold and silver are real, but you almost never meet them if you buy recognized bullion — Eagles, Maple Leafs, LBMA-brand bars — from an established dealer, and keep assay cards sealed. The fakes worth knowing about are gold-plated tungsten bars (tungsten’s density nearly matches gold) and plated base-metal coins. At-home checks like the magnet, weight-and-dimension, and ping tests catch crude fakes and can bust a piece, but passing them does not prove the metal is real. The single biggest risk factor isn’t the test you skip — it’s the channel you buy from. Avoid marketplace and “too good to be true” deals, and most of the problem disappears.
This is a where-to-buy guide, not a lab manual. The goal is to stop a fake before it reaches you, recognize the few that get through, and know which tests actually decide the question. For the deeper toolkit on testing equipment, pair this with our companion guide to authenticating gold.
How fakes are actually made
Most counterfeit precious metal falls into a handful of categories, and knowing the method tells you which test will catch it.
Gold-plated tungsten cores
This is the famous one, and the hardest to catch. Tungsten has a density of about 19.25 g/cm³, almost identical to gold’s 19.3 g/cm³. A tungsten slug plated in a thin layer of real gold can match a genuine bar’s weight and dimensions at the same time — the two checks that defeat nearly every other fake. This is why large bars, especially kilo bars, are the prime target: one successful fake is worth tens of thousands of dollars, and a scale and calipers won’t expose it. Tungsten substitution is rare in small retail coins, because the cost and precision aren’t worth the payoff, but it’s the central reason to be careful with big bars from unknown sources.
Plated and base-metal coins
Cheaper fakes are brass, lead, copper, or steel given a thin gold or silver wash. They’re made to look right in a photo and pass a quick glance, but they almost always miss on weight, dimensions, or the ring test — base metals are less dense than gold, so a coin sized correctly comes out too light, and one weighted correctly comes out too big. Silver fakes are easier to bust than gold fakes here, because no cheap, non-magnetic metal closely matches silver’s relatively low density (10.5 g/cm³).
Counterfeit packaging, assay cards, and slabs
Sophisticated operations don’t just fake the metal — they fake the trust signals around it. Counterfeit assay cards, cloned serial numbers, and fake tamper seals are produced to wrap a fake bar in legitimate-looking packaging. Fake graded “slabs” (the sealed plastic holders from grading services like PCGS or NGC) are also made, sometimes housing a genuine-but-overgraded coin, sometimes a plated fake. The lesson: a card or a slab is only as trustworthy as your ability to verify it directly with the issuer or grading service, not just to look at it.
The most-faked items
Counterfeiters target what’s liquid and recognizable, because that’s what sells fastest. The same products that are easiest to authenticate are also the ones most worth faking.
- Popular sovereign coins. American Gold and Silver Eagles, Canadian Maple Leafs, Krugerrands, and Britannias are heavily counterfeited precisely because everyone wants them. The upside: their exact specs and security features are widely published, so genuine ones are easy to confirm.
- Common-brand bars. PAMP Suisse, Credit Suisse (legacy), Valcambi, and Royal Canadian Mint bars are frequently cloned, packaging included. Stick to recognized LBMA-accredited bar brands bought sealed.
- Common silver dates and rounds. Junk silver, common-date Morgan and Peace dollars, and generic 1 oz rounds get faked because they move in volume and buyers inspect them less carefully than a rare key date.
Obscure or unbranded products aren’t safer — they’re harder to verify, because there’s no shared baseline for what “correct” looks like. Recognizable bullion is the easier thing to authenticate.
At-home tests — what each one catches, and where it fails
Home tests are a first screen, not a verdict. They reliably bust cheap fakes. They do not reliably clear a well-made one. The rule worth internalizing: a failed test is meaningful, a passed test is not proof.
| Test | What it catches | Limits |
|---|---|---|
| Magnet (neodymium) | Iron/steel-based fakes — gold and silver are non-magnetic, so anything that sticks or drags is busted | Brass, lead, and tungsten aren’t magnetic either; passing proves almost nothing |
| Weight + dimensions (scale & calipers) | Most base-metal fakes — wrong density means wrong size or wrong weight vs. published specs | Tungsten matches gold’s weight and size; defeats this test on gold (but not on silver) |
| Ping / ring test | Base-metal fakes — real gold and silver give a long, high bell ring; base metals give a dull thud | Subjective; a skilled fake can mimic it; useless on a sealed bar |
| Ice test (silver only) | Fake silver — silver is the best heat conductor of any metal, so ice melts visibly fast on real silver | Rough and qualitative; gold doesn’t conduct the same way, so it’s a silver-only check |
| Fisch tester | Wrong weight and size together — a precision gauge a genuine coin balances and slips through | Coin-specific; won’t catch a tungsten core that matches both dimensions |
| Sigma magnetic-slide / verifier | Plated cores — reads conductivity below the surface, so it can flag a gold-plated tungsten slug | Reads only to a limited depth; very thick bars need other methods; costs real money |
| Ultrasound / XRF (pro) | Deep and surface fakes — ultrasound catches tungsten cores; XRF confirms surface purity | XRF reads only the outer layer (misses a plated core alone); equipment is professional-grade |
The magnet test
Gold and silver are not magnetic. Hold a strong neodymium magnet near a genuine coin or bar and you should feel nothing. If it sticks, drags, or the magnet slides slowly down a tilted bar, the piece contains ferromagnetic metal and is fake. That’s a real result — a fake that sticks is busted. But a pass only rules out iron-based fakes, and the dangerous fakes (tungsten, brass, lead) aren’t magnetic either.
Weight and dimensions
This is the strongest at-home method. Every genuine bullion product has published specs — exact weight in grams or troy ounces, plus diameter and thickness. A 1 oz Gold Eagle weighs about 31.1 grams (a troy ounce is heavier than the regular ounce) at its stated size, every time. Use a scale accurate to 0.01g and a digital caliper. A base-metal fake that nails the weight will be the wrong size, and one that nails the size will be too light. The one exception that matters: tungsten matches gold on both — so this clears most silver fakes outright, but can’t fully clear a large gold bar.
The ping (ring) and ice tests
Balanced on a fingertip and tapped, real gold and silver ring like a small bell — long and high. Base metals thud. Phone apps can analyze the frequency. It’s a quick gut-check, subjective, and useless on a sealed bar. For silver specifically, the ice test exploits the fact that silver is the most thermally conductive metal there is: set an ice cube on a real silver coin or bar and it melts noticeably faster than on a counterfeit. Both are screens, not proof.
Tools for serious buyers
If you buy often or buy big, three tools earn their cost. The Fisch tester checks weight and dimensions together in one pass. The Sigma Metalytics Precious Metal Verifier (the magnetic-slide style device) reads conductivity beneath the surface, so it can flag a plated tungsten core a scale would miss — within its depth limit. And professional ultrasound or XRF testing, which most reputable coin shops can run on the spot, is the decisive answer for high-value pieces: ultrasound catches tungsten cores, XRF confirms surface purity. Our authenticating gold guide covers these in more depth.
Prevention beats detection — buy where fakes can’t hide
The most effective thing you can do is never have to spot a fake. That’s a buying decision, made before you hold the metal.
- Buy from reputable dealers. An established bullion dealer has already vetted the metal, has a reputation to protect, and carries legal exposure if a piece is fake. That removes most risk for free. Use our how to vet a dealer checklist to confirm one.
- Stick to recognized LBMA brands and sovereign coins. PAMP Suisse, Valcambi, Argor-Heraeus, the Royal Canadian Mint, and the Perth Mint for bars; Eagles, Maples, and Krugerrands for coins. These are the most-studied objects in the market — and modern ones carry built-in security features like the Maple Leaf’s micro-engraved radial lines and PAMP’s Veriscan surface fingerprint.
- Keep assay cards sealed. A minted bar’s value and verifiability live in its sealed, tamper-evident assay card with a matching serial number. Breaking the seal removes a layer of proof and can hurt resale. Leave it intact.
- Avoid marketplaces and too-good-to-be-true deals. Amazon, eBay, social-media marketplaces, and “cash deal” strangers mix legitimate sellers with counterfeiters and offer weak recourse after the fact. Our guide to buying gold on Amazon and eBay explains why these channels concentrate the risk.
The red-flag checklist
- Priced below melt value, or far under typical dealer premiums for the product
- Sold on Amazon, eBay, a social marketplace, or by an anonymous “cash only” seller
- Weight or dimensions that don’t match the mint’s or refiner’s published specs
- Broken tamper seal, missing assay card, or a serial number that won’t verify with the refiner
- A “graded” slab you can’t confirm on the grading service’s own lookup site
- Sticks to a magnet, or gives a dull thud instead of a clear, ringing tone
- Soft, blurry, or off-color details; uneven edges; reeding or lettering that looks wrong
- Seller pressures you to decide fast, or refuses in-person inspection or testing
A single flag isn’t always fatal — a coin can have honest wear. But two or three together, especially price plus channel plus a refusal to let you test, mean you’ve found the wrong piece. Walk away.
When not to take the risk at all
- It’s a large bar from a non-dealer source and you can’t get it ultrasound-tested or assayed first.
- The price sits below melt value — real gold and silver rarely sell at a steep discount, and a “deal” this good is the warning.
- It comes from an open marketplace or an anonymous seller with no return policy and no reputation on the line.
- The assay seal is broken, the card is missing, or a serial number doesn’t verify directly with the refiner.
- The seller won’t let you weigh, measure, or test it before money changes hands.
There’s no bargain worth ignoring these signals for. Bullion is a commodity sold by many honest sellers; you can always buy the same ounce elsewhere with confidence.
What to do if you suspect a fake
If you already hold a piece you doubt, work the problem in order. First, run the free checks — magnet, then weight and dimensions against the published spec, then the ping test (and the ice test for silver). A clear failure on any of these is your answer. If it passes but you’re still uneasy, take it to a reputable coin shop or dealer for an XRF scan and, for a bar, ultrasound — the decisive tests for a plated core. For a serial-numbered bar, verify the number directly with the refiner’s system (PAMP’s Veriscan, for example).
If a piece is confirmed fake, your recourse depends on where you bought it. A reputable dealer should make it right under their return policy — that accountability is exactly why you pay a premium to buy from one. For a marketplace purchase, open a dispute through the platform and your payment provider immediately; recourse is weaker and time-limited, which is the whole reason we steer buyers away from those channels. Keep the packaging, the listing, and all communication. Knowingly selling counterfeit precious metal is a crime, so reporting it to the platform and, for larger losses, to law enforcement or the FTC is appropriate.
Does a magnet test prove my gold is real?
No. A magnet test only rules out fakes containing iron or steel, because gold and silver aren’t magnetic. Brass, lead, and tungsten aren’t magnetic either, so a piece can pass the magnet test and still be fake. A failed magnet test busts a piece, but a pass proves almost nothing on its own — pair it with weight and dimension checks, and use professional testing for anything valuable.
Why is tungsten used to fake gold but not silver?
Tungsten’s density (about 19.25 g/cm³) is nearly identical to gold’s (19.3 g/cm³), so a gold-plated tungsten core can match a real gold bar’s weight and size at once — defeating scales and calipers. Silver is far less dense (about 10.5 g/cm³), and no cheap, non-magnetic metal matches it closely, so silver fakes usually fail a simple weight-and-dimension check. That’s why large gold bars need ultrasound or assay, while most silver fakes are easier to catch at home.
What’s the safest way to avoid counterfeit gold and silver?
Buy recognized bullion — Eagles, Maple Leafs, and LBMA-brand bars — from an established dealer, keep the assay card sealed, and save your receipts. Avoid open marketplaces and deals priced below melt value. Buying this way means the metal is already vetted and the seller is accountable, so you’re unlikely ever to need a test.
Can the assay card or graded slab be faked too?
Yes. Counterfeiters produce fake assay cards, cloned serial numbers, fake tamper seals, and even counterfeit graded slabs. Treat packaging as a clue, not proof: verify a bar’s serial number directly with the refiner’s system and confirm a slab on the grading service’s own lookup site. If you can’t verify it at the source, don’t rely on it.