South Seas Cultured Pearls
South Seas Cultured Pearls -
South Seas cultured pearls are (most commonly) grown by implanting a mother of pearl (MOP) spherical bead inside a...
Natural Pearls
Natural Pearls -
Pearls that are created by Mother Nature (and the oyster, of course) are called "Natural Pearls." There is no (intentional) human...
Is it a Padparadscha, or not?
Is it a Padparadscha, or not?
GIA Observes Unusual Color Change in Sapphires During Color Stability Testing... and what is Tenebrescence?
Above - Image copyright GIA,...
from Gemworld International: Tanzanite
2022GemFocus-DecTanzaniteDownload
This feature is provided courtesy of Gemworld International, Inc., publishers of the GemGuide and Gem Market News.
From the Gem & Mineral Vault
Rhodochrosite
from Peru
on view at the Harvard Mineralogical & Geological Museum (MGM), Cambridge, Massachusetts, across the Charles River from Boston.
Photo by Gary Roskin
AGA Conference & Gala
Accredited Gemologists Association
2023 AGA Tucson Conference
Register to join us Wednesday, February 01, 2023
Conference features include a stellar lineup of six gemological education presentations and...
What is a “Circular Brilliant”?
The Palm Tree BroochChristie's Auction, Dec. 6
Gary Roskin -Roskin Gem News Report -December 07, 2022 -
The Palm Tree Brooch, a Cartier estate piece, was...
Dr. Jeffrey Post: Minerals Talk Live
Mineral Talks LIVE: Wednesday December 7, 2022
Do you want a more personal, in-depth connection with some of the most fascinating people in the mineral...
An Unusual Pearl: Coated or Not?
Roskin Gem News ReportGary Roskin
Conch Pearl: Coated, or not?
Identification of pearl coatings can be a bit tricky, especially if the coating has been performed...
GIA Alumni: Continuing Education
Learn from GIA's best. Continuing education sponsored by the GIA Alumni Collective
Sithole opens a Gemmological laboratory and Lapidary Center in Afghanistan
Tap here to read the feature story in the Herald
https://www.herald.co.zw/sithole-opens-a-gemmological-laboratory-and-lapidary-center-in-afghanistan/
Danat launches smartphone app for pearl and gemstone examination results
November 29, 2022
BAHRAIN
Manama, Bahrain – The Bahrain Institute for Pearls and Gemstones (Danat) has launched a new mobile application that enables customers to view...
