Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2004-09-27
2009-08-04
Le, John H (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C356S030000, C451S028000, C451S041000, C702S179000
Reexamination Certificate
active
07571060
ABSTRACT:
A system for grading the cut of a diamond utilizes a number of appearance metrics to generate scores for a number of cut components that affect cut quality. These cut components include brightness, fire, scintillation, overweight, durability, polish, and symmetry. The cut grading system employs a cut grading algorithm that processes the individual scores obtained for the cut components to generate an overall cut grade for the diamond. The scoring methodology and the cut grading algorithm are designed to emulate actual observation grading such that the overall cut grade represents a fair indication of the cut quality of the diamond. In one practical embodiment, the cut grading system is fully automated and computer-implemented.
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Blodgett Troy
Geurts Ronald
Gilbertson Al
Green Barak
Hemphill T. Scott
DLA Piper (LLP) US
Gemological Institute of America (GIA)
Le John H
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