These two colors are outliers within the colored diamond world. Gemologists must read the GIA report.
Useful link:
https://www.gia.edu/gems-gemology/fall-2019-fancy-white-fancy-black-diamonds
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 James E. Shigley. Show all posts
Showing posts with label James E. Shigley. Show all posts
Sunday, December 29, 2019
Monday, September 30, 2019
Saturday, August 24, 2019
Inclusions In Natural, Treated, Synthetic, And Imitation Opal
Take a look at a wide range of interesting inclusions in opal.
Useful link:
https://www.gia.edu/gems-gemology/summer-2019-suggested-reading-opal-chart
Useful link:
https://www.gia.edu/gems-gemology/summer-2019-suggested-reading-opal-chart
Sunday, April 07, 2019
Chart: Inclusions In Natural, Synthetic, And Treated Diamond
A good reference chart from the GIA.
Useful link:
https://www.gia.edu/gems-gemology/winter-2018-inclusions-natural-synthetic-treated-diamond
Useful link:
https://www.gia.edu/gems-gemology/winter-2018-inclusions-natural-synthetic-treated-diamond
Thursday, February 21, 2019
Natural-Color Pink, Purple, Red, And Brown Diamonds: Band Of Many Colors
A series of studies on natural colored diamonds.
Useful link:
https://www.gia.edu/gems-gemology/winter-2018-natural-color-pink-purple-red-brown-diamonds
Useful link:
https://www.gia.edu/gems-gemology/winter-2018-natural-color-pink-purple-red-brown-diamonds
Monday, September 03, 2018
Saturday, July 28, 2018
Tuesday, June 12, 2018
New Plastic Imitation Opal From Kyocera
Opal imitation update.
Useful link:
https://www.gia.edu/gems-gemology/spring-2018-labnotes-new-plastic-imitation-opal-from-kyocera
Useful link:
https://www.gia.edu/gems-gemology/spring-2018-labnotes-new-plastic-imitation-opal-from-kyocera
Tuesday, March 20, 2018
Thursday, March 01, 2018
Inclusions In Natural, Synthetic, And Treated Ruby
A good comparison study.
Useful link:
https://www.gia.edu/gems-gemology/winter-2017-inclusions-natural-synthetic-ruby
Useful link:
https://www.gia.edu/gems-gemology/winter-2017-inclusions-natural-synthetic-ruby
Wednesday, December 20, 2017
Saturday, September 30, 2017
Thursday, May 18, 2017
Tuesday, August 09, 2016
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