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It is almost impossible to observe any difference in the top five or six color grades of the rough diamond. Nevertheless, the differences exist an...

Powerful lighting base and cold light source with high-end swivel joint for spectroscope optics.  Two alternately switchable and dimmable 100W hi...

Product information MULTI SPEC UV lamp LW / KW and darkrooms  UV lamp 2 x 4 watt UV fluorescent tubes, arranged in parallel UV longwave: High-int...

This light source simulates daylight for diamond grading and has longwave UV light for fluorescence. The grooved, built-in grading tray is made of ...