【Gemstone Identification Configuration】A binocular angled observation head that rotates 360°, paired with a 20X/40X fixed-magnification objective and a WF 10X/20mm wide-field plan eyepiece, offering adjustable diopter and clear, high-resolution imaging 【Dual-Mode Light Source】12V 10W oblique illumination + 6V 20W transmitted illumination, with three light source settings selectable via a knob. The pull-down bulb design allows for easy replacement, supporting dark-field observation 【Stage】A three-sided stage (black/white/frosted glass) adaptable to different types of transparent gemstones. The professional gemstone clamps rotate freely and include a sample clamp for safe and convenient operation 【Compact Design】A compact 18×14×32cm size, weighing only 3kg, with a robust and durable body and a 90mm working observation distance, balancing operational comfort and equipment reliability 【Applications】The zoom optical imaging design combines large depth of field with stereoscopic observation, meeting the precise testing requirements of professional scenarios such as gem identification and observation