Rob Bates was spot on. Having grading laboratories was meant to standardize grades in the first place. But it hasn't happened. Sad really.
Useful links:
http://www.l-a-b.com
http://www.diamonds.net
http://www.gia.edu
http://www.americangemsociety.org
http://www.gubelingemlab.ch
http://www.ssef.ch
http://www.hrd.be
http://www.igiworldwide.com
http://www.cibjo.org
P.J.Joseph's Weblog On Colored Stones, Diamonds, Gem Identification, Synthetics, Treatments, Imitations, Pearls, Organic Gems, Gem And Jewelry Enterprises, Gem Markets, Watches, Gem History, Books, Comics, Cryptocurrency, Designs, Films, Flowers, Wine, Tea, Coffee, Chocolate, Graphic Novels, New Business Models, Technology, Artificial Intelligence, Robotics, Energy, Education, Environment, Music, Art, Commodities, Travel, Photography, Antiques, Random Thoughts, and Things He Like.
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