The book is limited to 600 copies and can be purchased on Lotus Gemology website.
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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Friday, August 30, 2024
Monday, August 21, 2023
Guest In Garnet
Many thanks to Lotus Gemology and Gems & Gemology for sharing a beautiful garnet inclusion.
Friday, June 09, 2023
Apatite In Hackmanite
Many thanks to E. Billie Hughes of Lotus Gemology and Gems & Gemology for sharing an insightful report on Hackmanite.
Tuesday, November 02, 2021
Identifying Gemstone Inclusions At First Sight
E. Billie Hughes was spot on. When you sit in front of the microscope to view the known unknown and unknown unknown gem inclusions the challenges are immense. Reference resources and analytical gem instruments can be useful, if you are properly trained. Intellectual curiosity is also an added virtue. At the end of the day it's deliberate practice that makes you near-perfect. The micro world is truly a fascinating adventure for gemologist with limitless patience.
Sunday, September 05, 2021
Jade: A Gemologist's Guide
History. Sources. Identification. Appraisal. Treatments. A must-have book for all collectors, dealers, gemologists, appraisers, curators and anyone else with an interest in jade.
Sunday, April 11, 2021
Oiled Tanzanite
Any gems with surface-reaching fissures can be oiled. The purpose is to improve clarity. Consumers and gem dealers beware.
Sunday, January 31, 2021
Oiled Spinel
Oiling can have a significant impact on the clarity of a gemstone. Having lived in Southeast Asia for over two decades, I have seen it all. It's an art. Buyer beware.
Monday, October 05, 2020
Staurolite In Ruby
This is the first recorded observation of staurolite as an inclusion in corundum. Take a look.
Useful links: https://www.gia.edu/gems-gemology/spring-2020-microworld-staurolite-in-ruby I http://www.lotusgemology.com
Sunday, September 20, 2020
FTIR In Gem Testing
For practising gemologists only. Many thanks to Richard Hughes and Wimon Manorotkul for sharing an insightful article. Analytical instruments require a skilled operator to extract its full potential. Lifelong learning is a must-have skill in applied gemology.
Saturday, September 19, 2020
Gem Testing Labs And Tips On Choosing A Good Gem Testing Lab
The gemologists at Lotus Gemology has provided proper guidelines to help customers make the best decisions when choosing a good gem testing lab. Take note.
Sunday, August 23, 2020
Inside Out
Thursday, September 05, 2019
Friday, February 22, 2019
This Database Of Gemstone Inclusions Is Now Open To All
Useful link:
https://www.nationaljeweler.com/diamonds-gems/grading/7451-this-database-of-gemstone-inclusions-is-now-open-to-all
Tuesday, February 19, 2019
Colored Stone Grading
Useful link:
http://lotusgemology.com/index.php/library/articles/343-colored-stone-grading-a-heretic-s-guide
Saturday, June 24, 2017
A History Of Chanthaburi
Useful link:
http://www.lotusgemology.com/index.php/library/articles/276-moontown-a-history-of-chanthaburi-thailand-and-pailin-cambodia
Saturday, June 03, 2017
Ownership Of Words
Useful link:
http://lotusgemology.com/index.php/library/articles/132-ownership-of-words-an-essay-on-padparadscha-sapphire
Friday, November 25, 2016
Sunday, February 14, 2016
Tuesday, January 12, 2016
New Rubies From Madagascar
Useful link:
http://lotusgemology.com/index.php/library/articles/322-blood-red-rubies-from-madagascar-lotus-gemology