Jewelry Refractometer, Portable Gem Tester, Measures Refractive Index 1.30-1.81, Flashlight Included, for Jewelry, Gold, Silver, Diamond, Lab

Product size: 61*32*130mm Product weight: 0.6kg Test prism: high refractive index lead glass Measurement range: 1.30-1.81 Accuracy: ±0.002 Power supply: built-in LED light Minimum graduation value: 0.01ri Product packaging: 1x gemstone refractometer 1x flashlight

• ACCURATE GEMSTONE RECOGNITION : Our refractometer is specially designed to measure the refractive index of gemstones and solid materials , providing important gemstone recognition as it differs from gemstones to gemstones .
• ABS MATERIAL: This tester is made of ABS material. This material is hard and wear-resistant, which can meet the operator's appraisal needs in daily or professional jewelry appraisal, and has a long service life.
• PORTABLE AND EASY TO USE : Our refractometer is highly accurate , lightweight , and compact , making it easy to carry and operate . It is also one of the few instruments that can provide you with information on opaque gems and transparent gems .
• QUICK and IDENTIFICATION : Our refractometer quickly and accurately identifies single and double gems , including diamonds , moissanite , and colored gems .
• OUTSTANDING ADVANTAGES: This refractometer features high accuracy and easy Considered by many to be the most important of all gem testing instruments.