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...
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...
Ti Surface Diffusion: Just when you thought it was an easy identification
New research shows that the titanium surface diffusion treatment is being polished off the facets, but left inside cavities and fractures. Stone Group...
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...
Why lasers are being used to write inside diamonds
BBCBen MorrisTechnology of Business editor
I am peering through a jeweller's eyeglass, looking for the BBC logo that has been inscribed inside a small diamond.
The...
Jedi Spinels: a quest to the origin of the ultimate red spinels!
AIGS News - a Webinar with Vincent Pardieu
Vincent Pardieu is a Consultant Field Gemologist at “VP Consulting WLL”, a writer and a documentary producer....
Gems & Gemology, Summer Issue 2022
Diamonds from Guyana, Ekanite from Sri Lanka, a New Amber Source in Vietnam, and More...
GIA.eduDuncan Pay, Editor-in-Chief
Other features include:The Shape of EkaniteDiscusses the unusual...
GAMMA Vol. 2 Issue 2
GAMMA: The ICA | GemLab Journal
In this issue of GAMMA, you will find a wealth of information about rubies and emeralds.
In particular... A...
2022 CGA Gem Conference
2022 CGA Gem Conference, October 21-23 – Vancouver, BC
Over the next several weeks, the Roskin Gem News will feature the guest speakers who presented...
Fluorescence that proves Natural
Stone Group LaboratoriesCara & Bear Williams
Findings from Stone Group Laboratories shows the blue/white fluorescence in diamond can only be natural in origin.
Many gemstones...
5,010-carat ruby, weighing 1 kg unveiled in Dubai
Siasat.com - Sakina Fatima | 26 September 2022 -
The rough stone was discovered in the small village of Hyderabad, Pakistan, bordering Iran and Afghanistan.
...
Nature’s Majesty Meets Bvlgari’s Savoir Faire
Nature’s Majesty Meets Bvlgari’s Savoir Faire
A remarkable creation from the Bvlgari High Jewelry Collection
Jewels & Jadeite Auction - Phillips, Hong KongAuction 23 May 2023...