The Dragon Garnet
The Dragon Garnet
by Gary Roskin, exclusive for the Roskin Gem News Report
Dragon Garnet
So, what is Dragon Garnet?
What is it?
Basically, Dragon Garnet is a Malaya...
Color Enhancement in Ruby has SGL Seeing Red
Color Enhancement in Ruby has SGL Seeing Red
by Bear Williams, Stone Group Labs (SGL)
RUBIES are typically sent into professional gem labs for Identification...
A Canary in the Ruby Mine
A Canary in the Ruby Mine
by E. Billie Hughes and Wim Vertriest
Low-Temperature Heat Treatment Experiments on Burmese Ruby
Detection of low temperature heat treatment in...
Country of Origin – 3 Countries for 1 Sapphire
Country of Origin - 3 Countries for 1 Sapphire
What does it mean when a sapphire receives 3 Country of Origin reports and each country...
New Spinel Treatment: Nickel Diffusion
New Spinel Treatment: Nickel Diffusion
Scientists at the GIA laboratory in New York City recently discovered spinel, treated by nickel diffusion, in a parcel of...
AGS and GIA Announce Launch of AGS Ideal Report by GIA
AGS and GIA Announce Launch of AGS Ideal Report by GIA
Diamond World News ServiceJan 23 2023 1:13PM
It is a digital-only supplement to GIA diamond...
It’s Just Business
It's Just Business -
Sarine Signs MOU to Acquire Majority Stake in GCAL
Sarine, the leading manufacturer of artificial intelligence measuring devices for the gemstone industry,...
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,...
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...
