Tooltos Diamond Tester Pen | Thermal Conductivity LCD Multi-Gemstone
- 253 in stock
Description
Key Selling Points
- Instant Diamond Authentication — Thermal conductivity technology identifies real diamonds in seconds; LED reading of 9 or above plus audio alert confirms authenticity
- Multi-Gemstone Testing — Tests diamonds, sapphires, rubies, crystals, jade and agate with a single tool
- LCD Display with LED Indicators and Audio Alert — Clear, unmistakable results with no guesswork
- Portable Pen-Style Design — 62g lightweight body with protective carrying case; test anywhere on the bench or in the field
- Works on Mounted Stones — Test diamonds set in rings, pendants and other jewelry without removal
- 9V Battery Powered — Standard 9V battery (not included); long service life with moderate daily use
About This Diamond Tester
The Tooltos Diamond Tester Pen uses thermal conductivity technology to distinguish real diamonds from simulants in seconds. The pen-style body fits comfortably in hand, the LCD display and LED bar show results clearly, and the audio alert provides unmistakable confirmation. Suitable for jewelry retailers, appraisers, pawn shops, estate sale evaluators and serious collectors who need fast, reliable gemstone authentication at the bench or in the field.
How to Read the Results
| LED Reading | Result |
|---|---|
| 9 or above + audio alert | Genuine diamond |
| Below 9, no audio | Not diamond (simulant) |
| 7-8 lights | Genuine crystal |
| 6-7 lights | Genuine jade |
| 4-5 lights | Glass or simulant |
Best For / Not For
| Best For | Not Ideal For |
|---|---|
| Jewelry retailers verifying diamond authenticity Appraisers providing gemstone authentication Pawn shops assessing diamond jewelry value Estate sale and vintage jewelry evaluation Collectors authenticating personal gemstone collections Testing mounted diamonds in rings and pendants |
Moissanite detection (thermal method cannot distinguish from diamond) Testing metal surfaces Gemological grading (use certified lab for grading) Use with gloves (removes conductivity) |
Technical Specifications
| Detection technology | Thermal conductivity |
| Display type | LCD with LED bar indicators and audio alert |
| Power supply | 9V DC006P battery (not included) |
| Testable gemstones | Diamonds, sapphires, rubies, crystals, jade, agate |
| Response time | Instant (seconds) |
| Dimensions | 160 x 40 x 20 mm (6.3 x 1.6 x 0.8 in) |
| Weight | 62 g (2.2 oz) |
| Color | Black |
Pro Tips
- Hold the probe at a 90-degree angle to the gemstone surface for accurate results
- Touch the metal panel with your right index finger when testing diamonds — do not do this when testing other gemstones
- Calibrate on a piece of glass (adjust to LED 5) before testing non-diamond gemstones
- Allow the probe to warm up fully before the first test of each session
- Never test metal surfaces — only gemstone surfaces
- Remove gloves before testing to ensure proper thermal conductivity
Frequently Asked Questions
Q: How accurate is this diamond tester?
A: The thermal conductivity method is highly accurate for distinguishing diamonds from most simulants. Note that moissanite has similar thermal properties to diamond and may read as diamond on this tester.
Q: Can it detect moissanite?
A: Thermal conductivity testers cannot reliably distinguish moissanite from diamond. For moissanite detection, combine with visual inspection or use an electrical conductivity tester.
Q: Does it work on mounted diamonds?
A: Yes. You can test diamonds while set in rings, pendants or other jewelry. Ensure the probe touches only the stone surface, not the metal setting.
Q: What battery does it use?
A: One 9V DC006P battery (standard 9V). Battery is not included and is available at any electronics or hardware store.
Q: How long does the battery last?
A: With moderate use of 10-20 tests per day, a standard 9V battery typically lasts 2-3 months.
Q: Can beginners use this tester?
A: Yes. The LED bar and audio alert provide clear, easy-to-read results. The included user manual covers step-by-step operation.
What's Included
- 1x Diamond Selector II Tester (main unit)
- 1x Protective carrying case
- 1x User manual
- Note: 9V battery is NOT included
Support
Questions about testing procedures, gemstone compatibility or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
