The Japanese invented the Firescope in 1984 after

7 years of research together with a team of inventors,

gemologists, optics specialists, physicists and

plastic manufacturers.


The device assesses the brilliance of a diamond

and also offers a qualitative assessment of symmetry.


It has a white light source beneath a tray

that holds the diamond in place.


Looking through the Firescope,

one can only see red-pink, black and white.