London Dichroscope RSMizar Diamond & Moissanite Tester Double recessed dies (outer/inner size):

Double recessed dies (outer/inner size): Ø20

Anti-rust finish with bright nickel plated handles and fully treated chemically anti glare blacked cutting jaws

This Contact Digital Tachometer is used to detect rotate speed

Battery: 1 * CR2032 3V 320mAh Lithium Battery (Included)

London Dichroscope RSMizar Diamond & Moissanite Tester Double recessed dies (outer/inner size):Incorporates two polarizing sheets mounted at right angles to each other allowing the London Dichroscope necessity to sample rays from two different areas of the same stone. Examples are views of a Tourmaline ruby gemstone with a London Dichroscope with a backlight. With the same ray of light entering the gemstone both sides should be the same colour under the filter. Size Length with lense open 85mm and closed 55mm Width 30mm Thickness 12mm The