





Diamond and Moissanite Tester for Gemstone Screening
About This Diamond and Moissanite Tester
This handheld diamond and moissanite tester supports preliminary gemstone screening at jewelry counters, repair benches and gemstone workstations. Separate diamond and moissanite indication areas, a color LED progress bar and audible feedback help users read the screening response.
The pointed probe allows contact with individual loose stones and accessible stones in jewelry settings. A compact, lightweight handheld design makes it convenient to carry, while READY and LOW BATTERY lights show operating and battery status.
Screening Guide and Limitations
Slide the power switch to ON and wait for the READY indicator. Make sure the gemstone is clean and completely dry, then carefully place the probe tip against the stone. Observe the color progress indicator and audible feedback when interpreting the response.
Best For / Not For
| Best For | Not For |
|---|---|
| Jewelry retailers performing preliminary diamond and moissanite screening at the counter | Professional laboratory certification or conclusive gemstone identification |
| Repair workshops checking accessible gemstones in mounted jewelry | Testing by placing the probe against metal settings |
| Gemstone enthusiasts screening clean, dry loose stones | Distinguishing natural diamonds from laboratory-grown diamonds |
Technical Specifications
| Product type | Handheld diamond and moissanite tester |
| Intended use | Preliminary loose gemstone and mounted jewelry screening |
| Test feedback | Color LED progress indicator and audible feedback |
| Indication areas | Separate diamond and moissanite markings |
| Status lights | READY and LOW BATTERY |
| Probe | Pointed contact tip for individual gemstones |
Pro Tips
- Wait for the READY light before placing the probe on a gemstone.
- Clean and completely dry the stone before screening.
- Position the pointed tip carefully against the gemstone itself.
- Keep the probe away from metal prongs and other parts of the setting.
- Check the LOW BATTERY light and treat the response as a screening reference, not a certificate.
FAQ
1. What is this gemstone tester used for?
It is designed for preliminary diamond and moissanite screening during everyday jewelry inspection.
2. Can it tell natural diamonds from laboratory-grown diamonds?
No. It cannot determine whether a diamond is natural or laboratory-grown, and it does not replace laboratory identification.
3. Can I test loose stones and mounted jewelry?
Yes. The pointed probe is intended for individual loose stones and accessible gemstones in jewelry settings. Contact the gemstone rather than surrounding metal.
4. How are the test responses displayed?
The device uses a color LED progress indicator and audible feedback, with separate diamond and moissanite indication areas. READY and LOW BATTERY lights show device status.
5. What should I avoid when testing?
Do not test a dirty or wet gemstone, touch the metal setting with the probe, or treat a screening response as definitive gemstone identification. Wait until the READY light is on before testing.
6. Who can help with product or order questions?
Contact the Musttool team at musttool01@gmail.com for questions about gemstone screening, product details or your order.
What's Included
- 1 × Diamond and Moissanite Tester
- 1 × Packaging Box
Only the items listed above are included.
Support
Questions about gemstone screening, tester operation or order status? Contact the Musttool team at musttool01@gmail.com. We respond within 24 hours on business days.