3inx1.5in/3.9inx2in 10K/14K/18K/22-24K S/L Metal Testing Stone, Jewelry Gold Testing Tool, Portable for Testing Gold for Testing Jewelry(large)
$11.42
$11.42
$
5
.99
$5.99
- changes color based on purity. Very easy to use
- 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
- Ideal for testing jewelry, , antique gold, silver, collectibles
- Apply a drop test on touchstone, real gold will stay on the touchstone, fake one will be dissolved or oxidized to blue
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