Portable Gemstones Refractometer, High Accuracy Jewelry Gemstone Tester, Lab Refractometers Gem Tester for All Stones and Metal

Specification:Item Type: Portable Gemstones RefractometerMaterial: Glass, ABSProduct size:Approx. 128 x 60 x 32mm / 5.0 x 2.4 x 1.3inMeasuring Range: 1.30 to 1.81Minimum Division Value: 0.01Liquid: Refractive Oil (Shipped with Liquid)Flashlight Battery: 1 x 1.5V AA Battery (Shipped Without Battery)Weight: Approx. 590g / 20.8ozPackage List:1 x Portable Gemstones Refractometer1 x Flashlight1 x Refractive Oil1 x Box1 x User ManualNote:1.The refractive index of gemstones is a very important optical parameter. The gloss of the gemstones can be determined by this parameter. Since different gemstones have a fixed refractive index, all kinds of gems can be determined according to the refractive index. Birefringence can also be measured. This parameter can be used to determine whether a gemstones is uniaxial or biaxial.2.Shipped with liquid, shipped without battery.

• QUICK IDENTIFICATION: Refractometer provides a fast and precise method for identifying a wide range of single and double gemstones, including moissanite. It's a must-have tool for both jewelry professionals and enthusiasts.
• HIGH ACCURACY: Designed for professional use, Gemstone Tester refractometer offers exceptional accuracy. It helps you measure the refractive index of gemstones and materials with exactness, ensuring reliable results.
• PRACTICAL AND VERSATILE: Gem Tester primary purpose is to measure the angle at which light bends or refracts through gemstones. This is a crucial optical parameter for determining the authenticity and characteristics of gemstones.
• EASY TO USE: With a clearly visible display and a compact, portable design, Gemstones Refractometer is user-friendly. Digital Refractometer comes with a flashlight for added convenience, making it suitable for various lighting conditions.
• COMPLETE KIT: Lab Refractometers kit includes all the snecessities: the refractometer itself, a flashlight, refractive oil, and a user manual. Jewelry Tester a comprehensive package for gemstone identification and birefringence measurement.