Report by GSI: Rare phosphorescence in CVD Lab Grown Diamond

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

5,010-carat ruby, weighing 1 kg unveiled in Dubai

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Siasat.com - Sakina Fatima | 26 September 2022 - The rough stone was discovered in the small village of Hyderabad, Pakistan, bordering Iran and Afghanistan. ...

Fluorescence that proves Natural

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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...

2022 CGA Gem Conference

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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...

GAMMA Vol. 2 Issue 2

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GAMMA: The ICA | GemLab Journal In this issue of GAMMA, you will find a wealth of information about rubies and emeralds. In particular... A...

Gems & Gemology, Summer Issue 2022

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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...

Jedi Spinels: a quest to the origin of the ultimate red spinels!

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AIGS News - a Webinar with Vincent Pardieu Vincent Pardieu is a Consultant Field Gemologist at “VP Consulting WLL”, a writer and a documentary producer....

Why lasers are being used to write inside diamonds

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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...

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

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

Ti Surface Diffusion: Just when you thought it was an easy identification

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New research shows that the titanium surface diffusion treatment is being polished off the facets, but left inside cavities and fractures. Stone Group...
Conch Pearls

An Unusual Pearl: Coated or Not?

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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...

Danat launches smartphone app for pearl and gemstone examination results

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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...

MUST READ

Fun Facts: The Island Made Of Gemstones

Fun Facts: The Island Made Of Gemstones

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The Island Made Of Gemstones "Zabargad Island in the Red Sea is so crusted with peridot that it's fair to say the place is literally...