AGS announces the introduction of the HRR fourth edition Pseudoisochromatic Test for color deficiency screening, better known as the Colorvision Test.
Originally, LeGrand Hardy, MD, Gertrude Rand, PhD, and M. Catherine Rittler, BA, developed the test at Columbia University, with the assistance of several well-known color vision experts. The latest edition of the test has improved diagnostic accuracy through the use of updated color vision genetic information and state-of-the-art printing methods. This test will indicate if there is a color perception deficiency that could affect color judgment in diamond evaluation.
Testing of the individual will take approximately 10 minutes and is recommended for all professional appraisers or anyone engaged in the evaluation or valuation of colored gemstones and fancy color diamonds. This test is a requirement of all Certified Gemologist Appraisers of the American Gem Society.
AGS will begin administering this new test at the AGTA GemFair Tucson on Feb. 5, from 9am – 5pm, by appointment only. Contact the Education Department of the AGS at 702.255.6500 extension 1034 or firstname.lastname@example.org. Cost is $39 for AGS members; $69 for non-members.