High Precision Gem Tester for Jewelry, Diamond & Moissanite Identification Tool, LW 365nm & SW 254nm, for Jade, Gemstone & Diamond Testing

This professional jewelry diamond selector features lamps with two wavelengths and a light switching button for easy switching between long and short wavelengths. A color filter at the lamp heads allows only effective ultraviolet light to pass through. The dark box provides excellent shading, preventing external light from entering during use. The eyepiece is small with a wide observation range, suitable for observing gemstones of any color, luster, transparency, or shape using ultraviolet lamps. Instructions for use: Clean the gemstone and place it on the black background in the gemstone compartment, then close the lid. Keep your eyes close to the observation window to adapt to the gems in darkness, noting any influence from surrounding lights. Turn on the power switch and wait briefly for ultraviolet light emission. Press and release the LW button for 2-3 seconds to activate long wave ultraviolet light; observe and record the fluorescence color and intensity. Then press the SW button for 2-3 seconds to activate shortwave ultraviolet light; observe and record the color and intensity. After observation, turn off the light. Specifications: Name: Professional Jewelry Diamond Selector; Size: 170mm (length) * 170mm (width) * 140mm (height); Net weight: 2.6kg. Package list: 1 * High Accuracy Jewelry Diamond Tester.

• Dark box with light filtering : Designed with excellent shading to block external light interference, creating a pure black environment. Includes a high-quality color filter to eliminate stray light, ensuring accurate and reliable fluorescence observation without misjudgment.
• User-friendly operat and clear observation: Integrates a power switch and wavelength buttons for intuitive use. The scientific eyepiece offers a wide field of view and comfortable eye positioning, allowing focused observation of fluorescence details to enhance identification efficiency.
• Service: We are very sorry for the shopping experience you have experienced. If you have any problems with the goods you received, please contact us and we will serve you 24 hours a day.
• Versatile application with simple steps: Suitable for gemstones of any color, luster, transparency, or shape. Comes with a clear three-step guide (clean placement, dark adaptation, switch observation) for easy use by non-professionals, making it for jewelry studios, retail stores, and educational institutions.
• Dual wavelengths for gemstone identification: Features 365nm long wave and 254nm short wave light to comprehensively excite fluorescence reactions in various gemstones, enabling comparative analysis of color and intensity for authenticity and origin checks of diamonds, rubies, and sapphires.