How to Verify Bullion at Home

Counterfeit bullion exists, and it’s getting more sophisticated. Whether you’re a collector or investor, knowing how to verify your gold and silver at home adds an extra layer of security. Even if you purchase from trusted dealers, spot checks can give you peace of mind and prevent costly mistakes when reselling.

Basic Verification Methods

1. Visual Inspection

Start with a close look at the bullion:

• Check for mint marks and hallmarks (e.g., Perth Mint, Royal Canadian Mint).
• Confirm that design details match official reference images.
• Look for errors in font, spacing, or weight markings.

2. Weight and Dimensions

• Use a precise digital scale to confirm weight in grams or troy ounces.
• Compare diameter and thickness with published specifications.
• Any deviation could signal impurities or counterfeits.

3. Magnet Test

• Genuine gold and silver are non-magnetic.
• A neodymium magnet can detect ferrous metals hidden inside a fake coin or bar.
• Note: this test alone isn’t foolproof.

4. Sound Test (“Ping Test”)

Real silver produces a high-pitched ring, while fakes sound dull.

Tap two coins gently together or use a tuning app.

Advanced Home Testing Methods

Acid Test Kits

• Small drops of acid test reaction on the surface.
• Inexpensive, but can cause permanent marks if used incorrectly.

Electronic Gold Testers

• Measure electrical conductivity.
• More accurate but require calibration and investment in equipment.

Specific Gravity Test

• Measures density by weighing bullion in air and then in water.
• Works well for silver and gold bars or coins.

Ultrasonic or XRF Devices

• Portable spectrometers and ultrasonic testers are professional-grade tools.
• Costly, but effective for serious investors or dealers.

When to Seek Professional Help

If a test raises doubts, the safest route is to use a professional assayer or send your bullion to a trusted dealer for verification. For high-value pieces, professional testing provides certainty and preserves resale value.

Key Takeaways

• Start with simple checks: visual inspection, weight, and magnet tests.
• Combine multiple methods for the best accuracy.
• Use advanced testing or professional services for large or questionable holdings.