Diamond Tutorial Brilliance, Fire and Scintillation
               [empt.gif]      Firescope & Ideal-Scope
               [pntr.gif] Brilliance, Fire and Scintillation
   Fire or dispersed light appears as flashes of rainbow colors. You see
   more fire in darker environments like restaurants that have just a few
   small tables (like 'old cut' diamonds) produce more fire. But this
   it easier to see firey flashes that might otherwise be swamped by
   some fancy cuts appear to have a lot of fire.
   lighting environments where fire can be totally absent. Under pin
   point or spot lights fire also adds to scintillation. Ideally a