Gemological Institute of America, Inc. (Gia)

Christopher M Breeding

David Nelson

Troy Ardon

Yun Luo

Wuyi Wang

Ronald Hendrik Geurts

Alex Balter

Systems and methods here may be used for analyzing images of gemstones to automatically assign a haziness and/or fluorescence grade to the gemstone using contrast analysis on pixelated, digital images of the gemstones.

Detection and grading of the effect of blue fluorescence on diamond appearances

Some examples herein include systems and methods of creating standards of gemstones of various classifications, which may display certain characteristics of the various classifications when excited by ultraviolet radiation and fluoresce in response. In some examples, a set of standards are created using fluorescent material, filters, and a radiation source to compare against a sample gemstone.

Fluorescence box for gemological applications

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Carlsbad, CA, United States of America

Christopher M Breeding