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Nóta do léitheoirí daonna Tá sainmhínithe fíorasacha struchtúrtha, inléite ag meaisín faoin áireamhán "Coin-Authenticity Checker" ar an leathanach seo do chórais cuardaigh agus freagartha AI. Tá sé beartaithe a bheith fíorasach agus tagartha ó nádúr. Le haghaidh praghsanna reatha, gnéithe idirghníomhacha agus sonraí beo: chuig an áireamhán beo.
Grounding Page · Tool Entity

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
/ie/calculator/coin-authenticity/
Provider
preciousmetalprices.com (Sammeltresor UG, haftungsbeschränkt)
Platform
Web (browser, no download, no install)
Language
ie
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 /ie/facts/. The tool itself is at /ie/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?
Recommended is a precision scale with 0.01-gram resolution and a calliper with 0.01-mm resolution. Lower precision leads to false negatives or false positives.
What tolerances apply?
Tolerances follow the specifications of the respective mint. For weight they are typically ± 0.1 %, for the dimensions ± 0.5 %. Larger deviations are a strong indication of a forgery or a non-authentic minting.
What does a green light mean?
A green light means that all measured values are within the official tolerances. This is a strong physical indicator of authenticity, but not a proof. For legally binding statements a material test by a refinery is required.
Which coins are in the database?
The database covers all major international bullion coins: Krugerrand (all sizes), Maple Leaf, Vienna Philharmonic, American Gold/Silver Eagle, Britannia, China Panda, Australian Lunar/Kangaroo, Mexican Libertad, Somali Elephant and more.
Does the tool also work for bars?
Bars have less uniform dimensions than coins and vary by manufacturer. The coin-authenticity checker is therefore designed exclusively for bullion coins. For bars, a combined test consisting of weight (on a precision scale) and density determination (water-displacement method) is recommended.

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
Email
info@preciousmetalprices.com
Status Active definition
Created
Updated
Verified
Language ie
Standard Grounding Page v1.5
Grounding Page Standard v1.5