







💎 Don’t just guess it—test it! Elevate your gem game with precision and speed.
The Siziviki Diamond Tester Pen is a professional-grade, battery-powered device designed for quick and accurate verification of diamonds and other precious stones. Featuring LED and sound indicators, it delivers results in seconds and supports multiple gemstones including jade and agate. Compact and durable with IP65 protection, it’s ideal for jewelers and gem enthusiasts seeking reliable authenticity testing anytime, anywhere.





| ASIN | B0B5DHYMWX |
| Adjustable Length | Yes |
| Are Batteries Required | Yes |
| Best Sellers Rank | #70,694 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #327 in Multi Testers |
| Brand Name | Siziviki |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (768) |
| Display Type | LED |
| International Protection Rating | IP65 |
| Item Dimensions L x W x H | 13.5L x 2.2W x 4H centimeters |
| Item Type Name | 23 |
| Item Weight | 100 g |
| Manufacturer | Siziviki |
| Material Type | Plastic |
| Model Number | 20 |
| Power Source | Battery Powered |
| Recommended Uses For Product | Gemstone Authenticity Testing |
| UPC | 618087178460 |
K**G
Nice true
J**A
Simple to use and very functional. Great item. Very well made. Amazing size and quality.
F**H
Broken nib and battery don’t work
N**A
Received product as described. Works very easy with easy-to-understand directions.
L**M
This does seem to work at least to let you know if it is diamond versus rhinestone. The instructions are missing information that almost made me return it... You need to have your finger on the metal plate and hold the item in your other hand for the metal alert to work. Using this information made the detector function properly and accurately.
Trustpilot
3 weeks ago
2 months ago