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ImaGem Advances Color Grading of Diamonds

Jun 20, 2014 4:46 PM   By ImaGem
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Press Release:  ImaGem is proud to announce that it has advanced diamond color grading technology to achieve accurate and repeatable grading of diamonds with a secondary hue. This is a major breakthrough achieved recently by Dr. Lalit K. Aggarwal, who has worked on this problem for the past 20 years.

ImaGem can now grade diamonds with secondary hues such as brown, gray and other hues, two toned diamonds, and colored diamonds. This can be done onsite with the newest version of ImaGem’s integrated diamond grading machine GL3200.

The GL3200 is part of ImaGem's strategy to provide the latest technology to the diamond industry for onsite grading. The Grader machine has a footprint of 12 inches by 24 inches and a capacity of grading 2,400 diamonds a month.

The GL3200 Grader machine grades color, fluorescence, light behavior, proportion analysis, symmetry and alignment for round as well as fancy shapes. The loading in the machine is done by a robotic arm and the entire grading process is automated.

The GL3200 is made available as part of Lab Express Service offered by ImaGem. Recall when you took a roll of film to a store for photo development and prints; this technology was replaced by an integrated machine installed in retail stores. Soon thereafter, this technology was replaced by digital cameras. GL3200 is based on digital imaging technology and color science. You can now get accurate grading results not in months, or weeks or days but in minutes.

For additional information on GL3200 Grader Machine, please contact ImaGem Inc. at 1.215.477.9920 or email


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Tags: color, diamonds, gl2300, grading, ImaGem, technology
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