1 oz Silver Krugerrand specifications and ping frequencies
The 1 oz Silver Krugerrand is a silver coin from South Africa (2017–2026), weighing 31.1 g with a diameter of 38.7 mm. Tapped gently on its edge, a genuine one rings at about 4.6 kHz, 10.4 kHz and 18.0 kHz: its first resonance frequencies, set by its metal, size and thickness. A counterfeit made of a different metal, or with a different weight or thickness, rings at different frequencies, which is what the ping test above checks.
| Ping test reference frequencies | 4622 Hz · 10365 Hz · 18007 Hz |
|---|---|
| Metal | Silver |
| Composition | 99.9% silver, 0.1% copper |
| Weight | 31.1 g |
| Fine metal content | 31.069 g |
| Diameter | 38.7 mm |
| Thickness | 2.84 mm |
| Face value | 1 Rand |
| Country | South Africa |
| Years | 2017 - 2026 |
Compare with the ping frequencies of every supported coin.
How to Spot a Fake Krugerrand
Counterfeit 1 oz Silver Krugerrand coins are increasingly common. Use the acoustic verifier above as your first line of defense, then check these key red flags:
- 🚨Incorrect weight (should be exactly 31.1g)
- 🚨Wrong diameter (should be 38.7mm) or thickness (should be 2.84mm)
- 🚨Flat, dull sound without sustained ring on ping test
- 🚨Magnetic attraction (genuine .999 silver is not magnetic)
About the Krugerrand
Introduced in 2017 to celebrate the 50th anniversary of the original Gold Krugerrand, the Silver Krugerrand shares the same iconic design featuring Paul Kruger on the obverse and a springbok antelope on the reverse. It quickly became one of the most popular silver bullion coins, leveraging the Krugerrand name's global recognition.
Authenticate Your Krugerrand on the Go
Download Pingcoin for iPhone or Android to instantly verify your Krugerrand and other precious metal coins using acoustic authentication.