Gold Silver & Diamond Tester Gemstone Testing KIT Electronic Test 6 Solutions
- Ideal for testing jewelry, coins, antique gold, silver, collectibles.
- This touchstone is used to verify the gold content in items.
- This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, silver, and pure.
- Acid changes color based on purity. Very easy to use.
- Apply a drop acid test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue.