Gemstone Refractometer, Jewelry Tester Identification Tools, Gemstone Identification Tool with Built-in Led Light Source, Testing Range 1.35-1.85 Jewelry Refractometer, for Diamonds

Gemstone refractometer. Portable professional jewelry refractometer with 28mm retractable large lens. Gemstone identification tool. Built-in led light source, for jewelry testingFeature1. The instrument is lightweight and portable, with simple and intuitive operation, effectively distinguishing between opaque and transparent gemstones.2. It supports two power modes: battery (not included) or plugging directly into a power source. The built-in LED light source ensures stable illumination.3. Made of high-quality stainless steel, it is sturdy, stable, and easy to clean.SpecificationName: Gemstone RefractometerMeasurement accuracy: ≤±0.002Ruler range: 1.35-1.85 black background high contrast ruler, clearer interfaceLight source: Built-in quasi-monochrome LED light source, wavelength 589±3nmPower supply: batteries or power supplyPower switch: push button switch, two-speed brightness adjustment switchCountertop: Stainless steel countertopExternal dimensions: 14cmX4.2cmX9.5cm/5.5x1.7x3.7inNet Weight: 561g/1.2IbPackage Content1 x Gemstone RefractometerNote1. Due to light and personal differences in color understanding, there will be small color difference, in kind, prevail.2. Due to different measurement methods, the error is generally 1 - 2 cm, and the error range is not within the quality range.

• 【Professional Measurement】: This gemstone refractor boasts a measurement accuracy of within 0.002, a prism hardness of 8.5, two-position dimming, and a large 28mm lens with retractable diopter adjustment for a clearer view
• 【Ruler Display】: An internal ruler displays accurate measurements, ensuring professional reliability. The digital display ranges from 1.35 to 1.85. Refracting oil is included; a drop of refraction oil in the center of the prism provides a test reading of 1.79
• 【Sturdy Construction】: Made of high-quality stainless steel, it is stable, stable, and easy to clean. It can measure jewelry with a refractive index between 1.30 and 1.80. The pouch makes it easy to carry, and at only 579g, it's lightweight and portable, making it easy to take wherever you need it
• 【Gemstone Analysis】: This instrument utilizes the light-bending properties of gemstones to analyze light refraction and determine the refractive index of different gemstones. The readings are efficient and accurate, providing effective evidence for gem identification and suitable for rapid identification of various gemstones
• 【Widely Range of Use】: It can test common gemstone types such as moissanite, diamond, and colored gemstones. In gem identification and material testing, it is an essential tool for measuring light refraction to meet diverse needs