We trust the GIA like we trust our doctor. Do doctors make mistakes? Sure. All the treaters have to do is make one simple change, and the treatment becomes harder to detect. It's possible certain diamonds may be marked as color undetermined, which would severely limit their marketability. Undetermined is the kiss of death. That makes unsellable. That's worse than saying it's treated.
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 treatments. Show all posts
Showing posts with label treatments. Show all posts
Thursday, April 22, 2021
Wednesday, March 17, 2021
GIA Report On Lab-Grown Treatments
The Gemological Institute of America has started providing specific information on post-growth treatments for synthetic diamonds, marking the latest shift in its approach to the category. Take note.
Useful link: https://www.gia.edu
Wednesday, September 20, 2017
Oiled Ruby: A Remarkable Visual
One of a kind. Take a look.
Useful link:
https://www.gia.edu/gems-gemology/summer-2017-microworld-oiled-ruby
Useful link:
https://www.gia.edu/gems-gemology/summer-2017-microworld-oiled-ruby
Saturday, July 29, 2017
Jewellery’s Naughty Little Secret: Treated Gemstones
Thursday, February 04, 2016
Impregnated And Dyed Turquoise
A common treatment in the gem market. Buyer beware.
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-gemnews-impregnated-dyed-turquoise
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-gemnews-impregnated-dyed-turquoise
Wednesday, February 03, 2016
Coated Rock Crystal Imitation Of Ruby
Take a look. Buyer beware.
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-gemnews-coated-rock-crystal-imitation-ruby
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-gemnews-coated-rock-crystal-imitation-ruby
Monday, February 01, 2016
Coated Kornerupine Beads
Take a look.
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-labnotes-coated-kornerupine-beads
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-labnotes-coated-kornerupine-beads
Saturday, January 30, 2016
Dyed And Natural Green Jadeite
Take a look.
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-labnotes-dyed-natural-green-jadeite
Useful link:
http://www.gia.edu/gems-gemology/fall-2015-labnotes-dyed-natural-green-jadeite
Tuesday, January 12, 2016
Wednesday, January 06, 2016
Strong Pinkish Purple Freshwater Bead-Cultured Pearls
One of a kind cultured pearls.
Useful link:
http://www.gia.edu/gems-gemology/summer-2015-labnotes-pinkish-purple-freshwater-bead-cultured-pearls
Useful link:
http://www.gia.edu/gems-gemology/summer-2015-labnotes-pinkish-purple-freshwater-bead-cultured-pearls
Sunday, December 20, 2015
Rare Treatment Combination
A must read for practising gemologists.
Useful link:
http://www.gia.edu/gems-gemology/summer-2015-labnotes-beryllium-diffused-orange-sapphire
Useful link:
http://www.gia.edu/gems-gemology/summer-2015-labnotes-beryllium-diffused-orange-sapphire
Wednesday, July 29, 2015
Monday, July 27, 2015
Friday, July 24, 2015
Sunday, July 05, 2015
Wednesday, July 01, 2015
An Introduction To Gem Treatments
The best overview. A must read. http://www.gia.edu/gem-treatment
Tuesday, June 02, 2015
Tuesday, May 19, 2015
Friday, December 12, 2014
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