

The Gemological Institute of America announced a new technology that enables laboratories to assess much larger groups of pearls more quickly and in greater detail than any previous technology.
After months of tests and evaluations, micro-CT X-ray units that produce high-definition 3-D images of individual pearls have been installed. The units allow the GIA to gain fully rotational 3-D images of the internalgrowth structures of pearls in 15 to 20 minutes.
Full Article: http://www.jckonline.com/2011/04/18/gia-introduces-advance-pearl-testing-technology