Jewelry Tester Identification Tools, Gemstone Refractometer, Refractive Index 1.300-3.000, with LCD Screens, for Jewelry, Gold ＆ Silver and Diamond

This refractometer features high accuracy and easy operation. Considered by many to be the most important of all gem testing instrumentsSpecifications:Measuring range: refractive index 1.300-3.000Measurement error: +-0.005Measurement accuracy: 0.001Appearance size: 13.5X7.8X2.4CMProduct includes:1*Gem Refractometer

• 【Gemstone Refractometer】It is the most important tool for gem identification, and can measure the refractive index value of gemstones non-destructively, quickly and accurately. Refractive index test range 1.300-3.000
• 【Structure】Gem Refractometer is mainly composed of high-sensitivity sensors, intelligent electronic devices, and LCD screens
• 【Working Principle】The working principle of the refractometer is based on total internal reflection. The refractive index is a very important optical parameter, and the characteristics of gemstones can be determined based on this parameter
• 【Test Method】No refractive oil is required, just bring the sample's measuring surface close to the measuring platform to measure. Based on this parameter, you can determine whether the gem is a uniaxial crystal or a biaxial crystal.
• 【Application Function】Quickly and accurately identify single and double gemstones, moissanite/diamond/colored gemstones, designed for measuring the refractive index of gemstones and solid materials