Gemstone Tester for Diamonds and All Stones, Professional Refractometer for Jewelry, Accurate Diamond Selector for Novice and Expert, 0.001 Accuracy, 1.300-3.000 Index

Eliminate the uncertainty of gem authenticity and strengthen client trust with this highly efficient digital gem refractometer. No more dealing with messy refractive oils that can damage delicate gemstones or overcomplicating the distinction between real diamonds and synthetic zircon. This user-friendly device offers professional-grade precision to address your biggest concerns effortlessly.ADVANTAGES:1. Experience hassle- measurements without messy oils. Simply place your gem or solid sample on the measurement platform for quick, clean, and contactless readings.2. Equipped with a high-precision sensor, this refractometer delivers accurate measurements ranging from 1.300 to 3.000, boasting an impressive accuracy of ±0.001 and an error margin of only ±0.005.3. Constructed from a lightweight yet durable aluminum alloy (weighing just 250g / 0.55 lbs), it is designed to resist scratches and corrosion, making it perfect for fieldwork. The bright backlit LCD display ensures visibility in any setting.4. Enjoy long-lasting performance with a powerful 700mAh battery, providing approximately 200 measurements per charge, making it efficient and reliable.5. Complete kit for your success includes everything you need: Refractometer, Aluminum Box, Tweezers, Countertop Cover, Calibration Blocks (1.487 & 1.806), and an English Instruction Manual.6. Exceptional battery life with a built-in 700mAh lithium battery, capable of supporting up to 10,000 measurements, ideal for on-site gemology applications.SPECIFICATIONS:- Product Name: Digital Gemstone Refractometer- Measuring Range: Refractive Index 1.300-3.000- Measurement Accuracy: 0.001- Measurement Error: ±0.005- Battery Life: 10,000 Measurements- Power Supply: 700mAh Lithium Battery- Product Size: 13.5x7.8x2.4cm (5.31x3.1x0.94 inches)- Net Weight: 0.8kg (1.76lbs)PRODUCTS INCLUDE:1 * Gemstone Refractometer1 * Calibration Block (1.487, 1.806)1 * Aluminum Box1 * Tweezers1 * Countertop Cover1 * Instru

• Precision measurement tool: This digital gemstone refractometer utilizes a cutting-edge optical system, advanced sensor technology, and intelligent electronics for fast, non-destructive refractive ind
• User-friendly operation: Unlike traditional gem testing methods, this device requires no refractive oil, simplifying the measurement process. To obtain instant results, simply place the gem on the mea
• Sturdy construction for longevity: Designed with a durable hard aluminum alloy work surface, this jewelry authenticity tester offers stable, precision measurements. The ABS engineering plastic power s
• Versatile for gemstone identification: This digital gem tester efficiently identifies both uniaxial and biaxial crystals, including moissanite, diamonds, colored gemstones, natural/synthetic materials
• Scientific operation and portability: This digital refractometer functions on the principle of total internal reflection, with the refractive index serving as a key optical metric for classifying gems