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🧪 Test like a pro, never miss a genuine sparkle!
This large natural touchstone enables precise testing of gold and silver purity from 10K to 24K using acid that changes color based on metal authenticity. Ideal for jewelry, coins, and collectibles, it offers a durable, easy-to-use surface trusted by professionals to quickly distinguish real precious metals from fakes.
| ASIN | B08CHJ85MC |
| Batteries required | No |
| Customer Reviews | 3.8 3.8 out of 5 stars (58) |
| Date First Available | 12 June 2021 |
| Item Weight | 66 Grams |
| Manufacturer reference | A sixxk1pwudgvgm-02 |
S**Y
A lot better than the small one that came with the test kit
R**S
Horrible stone does is not reliable results at all!!!
J**.
I purchased another that was cheap and didn't show marks good if at all, but this one is fabulous! I've tested gold and silver and it does the job and is pretty thick and wide. Best one I've ever gotten, great job! Thanks
K**L
Loved the short lead time
W**M
I needed a bigger testing Rock than what came with my testing kit this is perfect
Trustpilot
1 week ago
1 week ago