Jewelry Tester Identification Tool, High Accuracy Diamond and Moissanite Tester, with Observation Window, for Jade/Gem

Product Features: This Professional Jewelry Diamond Selector is equipped with lamps featuring two wavelengths and a convenient light switching button, allowing effortless transitions between long and short wavelengths. The lamp head incorporates a color filter that ensures only effective ultraviolet light is utilized. Its dark box design provides excellent shading, preventing any external light from interfering during use. The eyepiece offers a compact size with a wide observation range, enabling accurate examination of gemstones. With ultraviolet lamps, you can observe gemstones of any color, luster, transparency, or shape. Instructions for Use: Step 1: Clean the gemstone, place it on the black background of the lamp compartment, and securely close the lid. Step 2: Position your eyes near the observation window to allow accommodation to the gems in the chamber, ensuring that surrounding lights do not affect visibility. Step 3: Turn on the ultraviolet lamp's power switch and wait briefly to allow ultraviolet light emission. Press and release the LW button for 2-3 seconds to activate the long wave ultraviolet light. Observe the gemstone's fluorescence color and intensity, and take notes. Next, press and release the SW button for 2-3 seconds to turn on the shortwave ultraviolet light; observe and record the gemstone's characteristics. Finally, turn off the UV light when finished. Specifications: Name: Professional Jewelry Diamond Selector Color: Black and White Size: 170mm (length) * 170mm (width) * 140mm (height) Net Weight: 2.6kg Package List: 1 * High Accuracy Jewelry Diamond Tester

• Professional Jewelry Diamond Selector: This advanced selector features dual ultraviolet wavelengths—365nm long wave and 254nm short wave—designed to effectively stimulate fluorescence reactions across a variety of gemstones. Effortlessly switch between the dedicated green (LW) and red (SW) buttons to facilitate professional gemstone identification, enabling detailed comparative analysis of fluorescence color and intensity, essential for confirming the authenticity and origin of diamonds, rubies,
• Dark Box Design with Filtering : The dark box is engineered for optimal light suppression, completely blocking external light to create an ideal black environment for precise observation. The lamp head includes a high-quality color filter that eliminates stray light, ensuring that only pure ultraviolet light is utilized, thereby enhancing the accuracy and reliability of fluorescence observations and minimizing misjudgment.
• User-Friendly Operation and Clear Observation Window: This device features an integrated power switch and wavelength change button for a straightforward, user-friendly experience. The scientific design of the observation window allows for a broad field of view while enabling comfortable proximity to the eyepiece, facilitating easy focus on fluorescence reactions within the gemstone compartment and increasing identification efficiency.
• Model Function Segmentation: Available in both the standard model and the upgraded FUV-4Z version, the latter includes a diamond roller device in the gemstone compartment. This upgrade allows for safe and convenient fixing and rotation of diamonds, enabling multi-angle and blind spot-free fluorescence observation, making it especially beneficial for professional jewelers and appraisal institutes that demand precision in grading and testing diamonds.
• Service: We highly value our customers' shopping experience. If you have any questions, please feel free to contact us, and we will reply as soon as possible within 24 hours.