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 precious stones and solid materials. Many people think that gemstone refractometers are the most important of all gemstone testing instruments. The primary use of a refractometer is to measure the angle at which light bends or refracts through a stone. High precision, compact and easy to carry: The refractometer is highly accurate and easy to use, lightweight and compact, easy to carry, it constitutes an important recognition of gems, as it differs from gem to gem. The refractometer is also part of the Few instruments that can provide you with information about opaque and transparent gems. High quality: low battery consumption and long service life. Values such as R.I., Color, Hardness and S.G. The clear gemstone is tested and the surface is polished flat, which is very suitable for separating gemstones. Quick Identification: Quickly and accurately identify single and double gems: identify diamonds, moissanite and coloured gems, speed up the identification of gems in the package, do not require RI liquids, and produce consistent, reliable results every time, with a clearly visible screen for easy reading of measurements. After-sales service: we are committed to serving our customers wholeheartedly. Your feedback is the driving force behind our improvement. We are waiting for 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.