PeakTech
✓Price
$13.19
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QWORK® Electronic Diamond Tester, Portable Electronic Gemstone Tester Pen for Diamonds, Sapphire, Ruby, Crystal, Agate, Jade
★★★★★
$13.19
Quantity
1
Worldwide shipping
Fast tracked delivery
30-day returns
Hassle-free returns
Secure checkout
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Great service
Thousands of happy customers
About this item
- Accurately tests and identifies real diamonds and multiple gemstones such as sapphire, ruby, agate, and jade.
- This instrument is a precision electronic instrument, and its operating environment is 5-35 degrees Celsius, and the relative humidity of the air is less than 80%.
- 9+ indicator lights and a beep for diamonds, 7 lights for emerald, crystal and agate, and specific lights for other gems.
- During the test, hands must touch the metal plate behind the instrument.
- Easy operation and simple setup: insert battery, remove probe cap, enable the device, and calibrate on glass.
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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