Digital Gemstone Refractometer Tester, Professional Jewelry Testing
US$118.07
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US$118.07
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by www.crumb.tv
Free 30-day returns Details
Product details
| Management number | 249850984 | Release Date | 2026/09/17 | List Price | US$118.07 | Model Number | 249850984 | ||
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- [PRECISION MEASUREMENT TOOL]: Adopts premium optical system and smart electronics for non-destructive gem testing. It covers RI range 1.300-3.000 with ±0.005 accuracy and 0.001 resolution, ideal for gemologists and hobbyists to identify various gemstones.
- [USER-FRIENDLY OPERATION]: No refractive oil required for simple testing. Just place the gem to get instant readings. Included 1.487 & 1.806 calibration blocks guarantee stable precision to distinguish uniaxial and biaxial crystals.
- [STURDY LONG-LASTING CONSTRUCTION]: Hard aluminum alloy measuring surface paired with triple insulation for safety. Backlit LCD ensures clear display. Built-in 700mAh rechargeable battery supports up to 10,000 measurements per charge.
- [VERSATILE GEM IDENTIFICATION]: Recognizes moissanite, diamond, colored gems, natural and synthetic stones. Not for rough, under-polished gems or samples smaller than 2.0mm², great for labs, factories and collectors.
- [SCIENTIFIC & PORTABLE DESIGN]: Works based on total internal reflection principle. Compact 250g lightweight body with corrosion-resistant aluminum shell, easy to carry for field inspection and indoor appraisal.
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