Diamond Gems Tester Pen Portable Gemstone Selector Tool LED Indicator Accurate Reliable Jewelry Test Tool for Hardness Testing of Precious Metals
US$42.72
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Product details
| Management number | 222411776 | Release Date | 2026/05/04 | List Price | US$42.72 | Model Number | 222411776 | ||
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- Easy operation.
- LED light and o result indication.
- The red light will be showed and the o indicator will ring if the stone is real diamond.
- Simple calibration for stones of various sizes.
- Accurate and reliable reading.
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