GIA Student Design Showcase
A GIA student from the London campus receives recognition for a necklace design featuring baroque pearls, diamonds, and light pink garnets.
Gemstone Artisan Keycaps
One-of-a-kind gemstone keycaps for mechanical keyboards were exhibited at the 22nd Street show.
New Fluorite Deposit in Nigeria
A new find of fluorite from Nigeria was exhibited at the Pueblo show.
Tairus Hydrothermal Synthetic Sapphires Doped with Nickel and Chromium
Researchers of the Tairus joint venture have developed the technology for the hydrothermal growth of gem-quality crystals of synthetic sapphire.
Citrine from Zambia
Large, clean citrine reportedly from the Kitwe deposit in Zambia is a welcome addition to the gem market.
Prismatic Zircon in Kashmir Sapphire
Elongated zircon inclusions display attractive birefringent interference colors in a blue sapphire from Kashmir.
Laboratory Growth of Gem Materials and the Attempt to Replicate Nature
Provides an overview of processes for synthesizing gem materials and explains how unique growth conditions enable them to be separated from naturally formed gems.
Spring 2024 Auction Highlights
Several lots sold during the spring auction season far exceeded their presale estimates.
A Visit to Clarity Diamond’s CVD Facility
An in-depth look at Clarity Diamond’s CVD facility in Austin, Texas.
A Large Multicolored Natural Blister Pearl
A large baroque-shaped blister pearl with a unique multicolored appearance is examined in the Mumbai laboratory.
Fashioned Queen Conch Shell Bead
A Queen conch shell bead is submitted for pearl identification to the Mumbai laboratory.
Brown Zoning in Diamond
Strong linear brown zoning is observed in a Fancy Dark yellow-brown diamond.
Rainbow-Colored Partially Healed Fissure in Blue Sapphire
An iridescent partially healed fissure is observed in a blue sapphire from Sri Lanka.
Written Characters in Black Opal
Play-of-color patches in black opal display interesting written character patterns.
Radioactive Morganite
Two strongly orangy pink morganites with residual radioactivity were studied.
Spring 2026 G&G Publication Information
This document provides the publication information for Gems & Gemology
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