How to Verify Authentic Gold and Silver Bullion

Appearance and a single home test cannot conclusively authenticate gold or silver bullion. Reliable assessment compares the exact product with its issuer’s specifications and uses complementary methods appropriate to its metal, shape and thickness. The methods below describe industry options; they are not a statement of the equipment or procedures CanAm uses.

Start with the exact product

Record the mint or refiner, denomination or bar weight, purity, year and variant. Compare both sides, edges, markings and supplied packaging with the issuer’s reference for that product. A serial number or assay card can help with records, but can also be copied. Not every genuine bullion product has a serial number or an assay card.

Check calibrated weight and dimensions against the product specification, allowing for documented manufacturing tolerances and measurement uncertainty. Distinguish fine-metal content from gross alloy weight, and exclude holders and wrapping. A matching weight alone does not rule out a counterfeit.

Use verified security-feature photographs

The Royal Canadian Mint’s BULLION DNA page provides issuer reference photographs of radial lines and the micro-engraved maple-leaf security mark. Compare the correct issue and year rather than a generic coin illustration. The Mint describes DNA eligibility for Gold Maple Leafs dated 2014 onward and Silver Maple Leafs dated 2015 onward. Its specialised reader compares a registered security mark with its database; looking at a maple leaf through a loupe is not the same check. Do not assume these features apply to every older or fractional issue.

What testing methods can and cannot establish

Method	Useful evidence	Limitation
Visual checks and magnet screening	Flag mismatched details or an unexpected magnetic response	A non-magnetic object can still be counterfeit; check the expected alloy and packaging
Density	Compares mass with volume	Measurement error, geometry and similar-density substitutes can obscure differences
X-ray fluorescence (XRF)	Measures elemental composition near the surface	A thick precious-metal layer can conceal a different core; a surface reading does not verify the whole bar
Electrical resistivity testing	Checks whether the response agrees with the selected metal or alloy	Sensor coverage, sample thickness and device capability matter; corroborate weight and dimensions
Ultrasound	Can reveal internal anomalies in suitable bars	Requires suitable accessible surfaces, correct setup and interpretation; it is not a universal purity measurement

Equipment has calibration requirements and operating limits. An unexpected reading calls for investigation rather than an instant conclusion. Conversely, one normal reading does not establish that every part of an item is genuine. See the equipment manufacturer’s explanation of surface and internal testing and Sigma Metalytics’ device-specific guidance.

Avoid damaging checks

Do not scratch, file, acid-test, strike or remove protective packaging simply to try a home test. Ping sounds and melting ice are not conclusive authentication. Destructive sampling can affect a product’s condition and value; agree on any proposed sampling before it occurs.

What to confirm with CanAm

Our selling page says shipped packages are opened under camera and the metal verified. It does not specify a testing instrument or establish a standalone authentication service. Call +1 (844) 828-4653 to confirm whether your item can be assessed, which checks are available, any fees and whether packaging must be opened. Obtain instructions before shipping.

If an item concerns you, keep the invoice, photographs, packaging and any measurements together. Ask the seller and a suitably qualified assessor to resolve the concern before treating it as genuine or offering it for resale.