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...
Surface Diffusion

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...

Marvel’s Reality Stones are real, spectacular rubies — and they’re on sale

Mozambique, transparent, no heat - LATimes.com - JEVON PHILLIPS, MULTIPLATFORM EDITOR -   Just as the Avengers did, a chosen few people can start collecting...

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...

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...

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...

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. ...

Report by GSI: Rare phosphorescence in CVD Lab Grown Diamond

Diamond World News Service | Sept 29 2022 - Diamondworld.net - Lab Grown Diamonds have gained increased popularity in recent times. Today’s cutting-edge technology...