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.
Translate
Monday, November 21, 2022
Fraudulently Inscribed Synthetic Moissanite
Friday, December 03, 2021
New Emeralds From Musakashi In Zambia Appear In The Gem Market
The insightful report by SSEF is a must read for gemologists and gem traders worldwide.
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, July 18, 2021
Identification Of Resin-Filled Turquoise
Gem identification and treatments are evolving domains. GIA's report on identification of resin-filled turquoise was an insightful research story. The effectiveness of pore-filling treatment in improving appearance and durability of turquoise is an accumulated skill. It needs to be fully disclosed to the consumer. Period.
Wednesday, November 18, 2020
Friday, October 30, 2020
Separation Of Natural From Laboratory-Grown Diamond Using Time-Gated Luminescence Imaging
A must read for practising gemologists, jewelers, diamond dealers and intellectually curious consumers. Many thanks to researchers at GIA.
Saturday, October 24, 2020
GIA System Detects Lab-Growns In Melee
Useful link:
https://www.gia.edu
Tuesday, November 05, 2019
Separation Of Kornerupine And Prismatine
Useful link:
https://www.gia.edu/gems-gemology/summer-2019-labnotes-separation-of-kornerupine-and-prismatine
Tuesday, October 22, 2019
Sunday, October 20, 2019
Paraíba-Like Synthetic Sapphire
Useful link:
https://www.gia.edu/gems-gemology/spring-2019-labnotes-para%C3%ADba-like-synthetic-sapphire
Thursday, September 26, 2019
Large Faceted Gahnospinel
Useful link:
https://www.gia.edu/gems-gemology/spring-2019-labnotes-large-faceted-gahnospinel
Wednesday, September 11, 2019
GIA iD100
GIA (Gemological Institute of America) has released a software update for its iD100 gem-testing device. The upgrade means the instrument can distinguish natural pink diamonds from laboratory-grown (HPHT and CVD) diamonds and diamond simulants.
GIA also released a free update to the existing GIA iD100 software with the expanded capability to screen blue-to-green and brown diamonds. This update must be installed before the pink diamond software upgrade can be added.
The new software can be purchased from the GIA Store for $249 for current owners. It is pre-installed on new devices.
Thursday, September 05, 2019
Wednesday, September 04, 2019
Saturday, June 08, 2019
Wednesday, May 08, 2019
Ana Maria Pearl
Useful link:
https://www.ssef.ch/ssef-performs-first-ever-radiocarbon-age-dating-procedure-on-historic-ana-maria-pearl-to-be-sold-as-lot-264-at-christies-magnificent-jewels-sale-in-geneva-in-may
Wednesday, April 24, 2019
Friday, April 19, 2019
The Difference In Diamonds: Lab Grown vs. Mined vs. Alternatives
Useful link:
https://www.theplunge.com/engagement-rings/diamonds-lab-grown