Diamond cut scoring system and method

Details Diamond cut scoring system and method Diamond cut scoring system and method

2006-11-14

2006-11-14

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

Crystal or gem examination

Reexamination Certificate

active

07136154

ABSTRACT:
A gemstone rating system is provided particularly for rating the cut of diamonds in which particular cuts and features are measured and the results compared with and provided with a predetermined score depending upon deviations from a theoretical perfect cut; and wherein the deviation scores are summed and then subtracted from an initially perfect score to provide a universally comparable indication of quality of cut.

REFERENCES:
patent: 4900147 (1990-02-01), Bowley et al.
patent: 5966673 (1999-10-01), Shannon, Sr.
patent: 6020954 (2000-02-01), Aggarwal
patent: 6813007 (2004-11-01), Lapa et al.

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