Darkfield Diamond View The darkfield diamond view is the ideal portable tool for inspecting diamonds and other stones. This hand held darkfield loupe can easily be taken with you. Using true darkfield illumination, the gemologist can easily detect fracture-filled stones by observing the flash effect. This high quality, fully corrected 10x loupe is also an excellent device for detecting small inclusions. The darkfield loupe is attached to a powerful flashlight by a set screw so it will not fall off while you are inspecting a stone. Comes complete with 2 AA batteries. 8-¼" long.