Reveals Gemstone Colors: Our Medium Spectroscope detects absorption patterns, whether by shining a light through transparent stones or viewing reflected light from opaque stones. Distinguish natural colors, irradiated diamonds, and synthetic stones. Spectrum Recognition: Inside, a raster-type pattern forms a rainbow spectrum with black or white interruptions. Learn to recognize this pattern for accurate gemstone analysis. Compact & Durable: Made of durable aluminum, our spectroscope is 55mm long and 15mm in diameter, ensuring portability and longevity. Versatile Gemstone Tool: Analyze loose or mounted stones with ease. Identify selective absorption of wavelengths to differentiate between natural and treated diamonds, and spot synthetic stones. Convenient Storage: Includes a leather pouch for safe and portable storage, allowing you to explore gemstone spectra anytime, anywhere.