Rotary Mandrels

Our stone measuring and testing tools are designed to provide precise evaluation and analysis of gemstones, ensuring authenticity, quality, and value. Whether you are a professional gemologist, jeweler, or enthusiast, our instruments help measure carat weight, dimensions, refractive index, and hardness with confidence.

Choose from a range of devices including gemstone gauges, digital calipers, refractometers, spectrometers, and hardness testers—all essential for identifying stones, verifying quality, and detecting treatments or enhancements.

Reliable and easy to use, these tools support accurate appraisals, quality control, and customer assurance in every step of the gem evaluation process.