The way a diamond reflects and refracts light determines its beauty. GemEx Systems,
Inc. is able to measure measure the play of light in a diamond to
determine its Light Performance™. All Biro88™ Light Performance Diamonds
are accompanied by GemEx® Reports which rate their return of light.
Light Performance is broken down into 3 types of light return.
White light is commonly referred to as brilliance. The BrillianceScope®
Analyzer measures the percentage of the diamond returning bright white
light to the observer.
Color light is commonly referred to as fire. The BrillianceScope® Analyzer measures the percentage of the diamond returning bright color light to the observer.
"Scintillation is the term used for changing colors, the radiance and sparkle of the rays when the stone is moved or when the light source changes." (Diamond Grading ABC, Varena Pagel-Theisen) The BrillianceScope® Analyzer measures the number of light points and determines how they change from position to position.
The "Return of Light" analysis for any diamond is based on
a scale which compares the three components of light performance for that
diamond to standards established for diamonds with the same shape.
