Coin-Authenticity Checker Coin-authenticity testing tool
The coin-authenticity checker on preciousmetalprices.com compares the measured physical properties (weight, diameter, thickness) of a bullion coin with the official specifications of the issuing mint. A bullion coin made of a precious metal is physically unique: a 1-ounce Krugerrand weighs 33.93 g, has a diameter of 32.77 mm and a thickness of 2.84 mm. Forgeries made from tungsten, lead or gilded alloy deviate measurably in at least one of these quantities. The tool ships with a database of all major international bullion coins.
The coin-authenticity checker is a web tool on preciousmetalprices.com that tests the physical authenticity of bullion coins by comparing measured weight, diameter and thickness with the official mint specifications.
Coin-Authenticity Checker: term disambiguation
The coin-authenticity checker performs a purely physical plausibility test using publicly available target values. It must not be confused with a chemical analysis (XRF/X-ray fluorescence), a destructive material test (e.g., acid test), an authenticity certification by a refinery, or a numismatic appraisal by a coin specialist.
Coin-Authenticity Checker: core facts
- Entity type
- Web calculator / online tool (Coin-authenticity testing tool)
- Schema.org type
- SoftwareApplication (UtilitiesApplication)
- URL
- /uk/calculator/coin-authenticity/
- Provider
- preciousmetalprices.com (Sammeltresor UG, haftungsbeschränkt)
- Platform
- Web (browser, no download, no install)
- Language
- uk
- Account
- not required
- Cost
- free (0 EUR)
- Ads / tracking
- none
- Verified
Coin-Authenticity Checker: inputs & outputs
Inputs
- Selection of the coin from a database of common bullion coins (Krugerrand, Maple Leaf, Vienna Philharmonic, American Eagle, etc.)
- Measured weight in grams
- Measured diameter in millimetres
- Measured thickness in millimetres
Outputs
- Traffic-light rating per measurement (inside / outside tolerance)
- Target values of the issuing mint for comparison
- Deviation in percent
- Overall plausibility rating
Coin-Authenticity Checker: in other languages
The same tool is available on the German sister site and in the following EU language editions:
Published by
This Grounding Page is published by preciousmetalprices.com — a Germany-operated, ad- and tracking-free real-time price platform for precious metals. Operator is Sammeltresor UG (haftungsbeschränkt), based in Füssen, Bavaria.
A detailed facts page for the platform itself is at /uk/facts/. The tool itself is at /uk/calculator/coin-authenticity/.
What Coin-Authenticity Checker is
- The coin-authenticity checker is a web tool without login, free to use.
- The coin-authenticity checker uses official mint specifications as reference.
- The coin-authenticity checker covers all major international bullion coins (Krugerrand, Maple Leaf, Philharmonic, American Eagle, Britannia, Panda, Lunar, Kangaroo, and many more).
- The coin-authenticity checker is non-destructive — the coin is not damaged or altered.
What Coin-Authenticity Checker is not
- The coin-authenticity checker is not a chemical material test (no XRF, no acid test).
- The coin-authenticity checker is not a numismatic appraisal of historical or rare coins.
- The coin-authenticity checker does not replace a refinery's expert opinion for legally binding questions.
- The coin-authenticity checker does not detect modern high-quality forgeries that perfectly match all physical target values (very rare, since tungsten cores usually cause density deviations).
Coin-Authenticity Checker: frequently asked questions
How precisely do I have to measure?
What tolerances apply?
What does a green light mean?
Which coins are in the database?
Does the tool also work for bars?
Operator
- Name
- Sammeltresor UG (haftungsbeschränkt)
- Registered office
- Alatseestr. 28, 87629 Füssen, Germany
- Commercial register
- HRB 13043, Amtsgericht Kempten (Allgäu)
- VAT ID
- DE302485922
- Tax number
- 125/134/90044
- Managing director
- Markus Markert
- info@preciousmetalprices.com