Professional Gemstone Identification Tool, Gemstone Refractive Ldentification Gem Refractometer with External Light Source Send Flashlight

Features:Item Type: RefractometerRefractive Index Range: 1.30-1.73Minimum Scale: 0.01Error:±0.003Countertop material: GlassLight Source : ExternalSize: 60mm*128mm*32mmColor: BlackPacking List:1 x Refractometer1 x Flashlight1 x User Manual

• High accuracy: Professional gemstone refractometer has high accuracy, small size, easy portability and simple operation.
• Specially developed: This refractometer is specifically designed to measure the refractive index of gemstones and materials.
• Strong practicability: The main application of the portable gemstone refractometer is to measure the angle at which light is bent or refracted by the stone.
• Easy to read: The jewellery gemstone refractometer has a highly visible display for easy reading.
• Quick identification: The refractometer can quickly and accurately identify a variety of single and double gemstones and helps to identify diamonds, moissanite, etc.