Optivisor - Lens Plates Setting Tools Also included is a nice

Also included is a nice leather case and string for around the neck and a separate instruction sheet

A simple and effective tool to help determine whether a stone is a real diamond

Travel Lab for the Professional Gemmologist

Specially formulated compound extends tool life and ensures smooth operation

Optivisor - Lens Plates Setting Tools Also included is a niceOptiVISOR lenses are manufactured from high quality optical glass prepared toopthalmic standards. Itemnr. Magnification Focal Length #2 1,5 times 20" or 51 cm #3 1,75 times 14" or 35,50 cm #4 2 times 10" or 25 cm #5 2. 5 times 8" or 20cm #7 2,75 times 6" or 15cm #10 3. 5 times 4" or 10cm