Gubelin and the GIA are the best sources for origin determination.
Useful link:
https://www.gubelingemlab.com/en/gemlab/reference-collection
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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Showing posts with label Eduard J Gubelin. Show all posts
Showing posts with label Eduard J Gubelin. Show all posts
Monday, October 07, 2019
Friday, June 14, 2019
The Internal World Of Gemstones
Hats off to the late Dr. Eduard J. Gubelin, father of modern day inclusion studies.
Useful link:
http://www.palagems.com/inclusions
Useful link:
http://www.palagems.com/inclusions
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