Product code: GEM-N-EYE III hotsell DIGITAL REFRACTOMETER jewelry making equipment
For confirming the hotsell identity of unknown gemstones. With eye-catching easy to read OLED display and with advanced processing capability. Do not have power supply but also runs on batteries. No light shields.
For confirming the hotsell identity of unknown gemstones. With eye-catching easy to read OLED display and with advanced processing capability. Do not have power supply but also runs on batteries. No light shields.