Gemstone Refractometer, Jewelry Tester Tool,with LED Light, Testing Range 1.35-1.85, for Diamonds,Gemstone Identification

Introducing the Gemstone Refractometer, a portable and professional tool designed for precise gemstone identification. Featuring a 28mm retractable large lens, this refractometer is ideal for both beginners and experts in jewelry testing. The built-in LED light source provides optimal illumination for accurate assessments of gemstones. **Features** 1. Lightweight and portable design ensures easy handling and operation, effectively distinguishing between opaque and transparent gemstones. 2. Dual power options allow for use with batteries (not included) or direct connection to a power source. The integrated LED light source guarantees stable illumination for accurate readings. 3. Constructed from high-quality stainless steel, this refractometer is durable, stable, and easy to clean. **Specifications** - Name: Gemstone Refractometer - Measurement Accuracy: ≤±0.002 - Ruler Range: 1.35-1.85 with a high contrast black background for a clearer interface - Light Source: Built-in monochrome LED light source with a wavelength of 589±3nm - Power Supply: Compatible with batteries or external power supply - Power Switch: Push button with a two-speed brightness adjustment - Countertop Material: Stainless steel - External Dimensions: 14cm x 4.2cm x 9.5cm (5.5 in x 1.7 in x 3.7 in) - Net Weight: 561g (1.2 lb) **Package Contents** - 1 x Gemstone Refractometer **Note** 1. Due to variations in lighting and personal color perception, slight color differences may occur; the actual product will be the reference. 2. Measurement errors of 1 - 2 cm are possible based on different methods, which are not considered a quality issue.

• Precision Measurement: This gemstone refractor offers a remarkable accuracy of within 0.002, a prism hardness rating of 8.5, two-position dimming options, and a spacious 28mm lens featuring a retractable diopter adjustment for enhanced clarity.
• Accurate Ruler Display: Equipped with an internal ruler for precise measurements, this device ensures professional-grade reliability. The digital display measures ranges from 1.35 to 1.85, and a drop of refractive oil included in the package allows for a precise test reading of 1.79.
• Robust Construction: Crafted from high-quality stainless steel, this refractor is both stable and easy to clean. It effectively measures jewelry with a refractive index ranging from 1.30 to 1.80. Weighing just 579g, it is lightweight and portable, making it convenient to transport.
• Effective Gemstone Analysis: Utilizing the unique light-bending characteristics of gemstones, this instrument accurately analyzes light refraction to determine the refractive index of various stones. It delivers efficient and precise readings, providing reliable evidence for gem identification and facilitating quick assessments.
• Service: We highly value our customers' shopping experience. If you have any questions, please feel free to contact us, and we will reply as soon as possible within 24 hours.