Salmue Gem Refractometer,Jewellery RHG181 1.30 1.81 Professional Gemstone ldentification Refractometer for Gemologists' Travel/Portable Lab Suitcase.

Specially designed: This refractometer is designed to measure the refractive index of gemstones and solid materials.Many people think that gem refractometers are the most important of all gem testing instruments.The main use of a refractometer is to measure the angle at which light is curved or refracted through a stone. High precision, compact and easy to carry: the refractometer is highly accurate and easy to operate. Lightweight and compact, it is easy to carry. It provides important gem recognition as it differs from gems to gems. The refractometer is also one of the few instruments that can provide you with information on opaque gems and transparent gems. High quality: low battery consumption and long service life. Possible gems are still removed by values such as R.I., Color, Hardness and S.G. The transparent gemstone is tested and the surface is polished flat, which is very suitable for separating precious stones. Quick Identification: Identify single and double gems quickly and accurately. Helps identify diamonds, moissanite and colored gems, speeds up the identification of gems in the package, requires no RI liquids and produces consistent, reliable results every time, with a clearly visible display for easy reading of measurements. Perfect after-sales service: we are committed to serving our customers wholeheartedly.Your feedback is the driving force of our improvement.Looking forward to your feedback.If you have any questions about our products, please feel free to contact us.We will try our best to meet your needs and solve your problems quickly and efficiently.