Luqeeg Gemstone Refractometer, Portable RHG181 1.30-1.81 Professional Gemstone Identification Jewelry Refractometer, Gem Tester for Identifying Single Double Gems

Specification: Item Type: Refractometer Material: ABS Refractive Index Range: 1.30-1.81 RI Color: As Pictures Shown Size: Approx. 13 * 6 * 3.5cm/5.1 * 2.4 * 1.4inch Weight: Approx. 721g Package List: 1 * Refractometer 1 * Electric Torch (Powered by 1 * AA battery which is NOT included)) 1 * English Manual 1 * 3 ML Reflective Index Fluid Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering! 1. Reading standard: The eyepiece needs to be adjusted to the clearest number and the shading line scale. 2. The ​ surface of the measuring item must be flat, and the diameter is more than 2mm. packing list: 1 * Refractometer 1 * Electric Torch (Powered by 1 * AA battery which is NOT included)) 1 * English Manual 1 * 3 ML Reflective Index Fluid

• 【Professional Gemological Analysis】Specially engineered for measuring the refractive index of gemstones and solid materials, this instrument delivers laboratory-grade precision for accurate material identification and verification.
• 【Portable Field Design】Featuring a lightweight and compact construction, this refractometer offers exceptional portability that allows gemologists and jewelers to conduct reliable measurements anywhere – from the showroom to the field.
• 【Precision Measurement Technology】Combining high-precision optical performance with intuitive, user-friendly operation, this device ensures both experts and beginners can obtain accurate refractive index readings with minimal training.
• 【Rapid Gem Identification】Capable of quickly and precisely distinguishing between single-refractive and double-refractive gemstones, this tool provides immediate verification that supports confident gem identification and authentication.
• 【Efficient Power Management】Designed with advanced low-power consumption technology that maximizes battery life, ensuring extended service time and reliable performance when you need it most.