Polariscope, mains-powered. Toolsets mostly for jewellery None of these can distinguish

None of these can distinguish natural (mined) diamonds from synthetic (lab-grown) diamonds

one year guarantee

Also good for very detailed examination of stamps and coins

perfectly polished surface

Polariscope, mains-powered. Toolsets mostly for jewellery None of these can distinguishSummary Approx. 7 X 6 X 5 inches, and the filter ("platform") 35mm diameter. Large base, easily rotates. Stone holder attaches to base for easy positioning of stone. Built in light. Guarantee: 1 year. Detail This instrument will show you if a gemstone is singly or doubly refractive. For instance, Moissanite is strongly doubly refractive, diamond is singly refractive. This is, therefore, a very cheap (if a little fiddly) method of distinguishing