YAG with Flux-Filled Fingerprints
The author recently examined a 3.58 ct yellowish green yttrium aluminum garnet, a manufactured product known in the trade as “YAG,” that contained numerous large flux-filled fractures.
Market Reaction to the Pandemic: Insights from Exhibitors
A survey of Tucson exhibitors investigates the COVID-19 pandemic’s impact on business and market trends.
Large Green and Yellow Diamonds Colored by Nickel Impurities
Testing several large green and yellow diamond samples reveals that nickel-colored diamonds can occur in larger sizes and stronger color saturations than previously suspected.
Spring 2022 G&G Publication Information
This document provides the publication information for Gems & Gemology
Michael Traurig: An Opal Dealer’s Battle with COVID-19
Michael Traurig celebrates a return to Tucson after his COVID-19 recovery and recalls his family’s history in the business.
A Pink Sapphire Ring with a Message
Exquisite triple-halo pink sapphire ring commemorates breast cancer survival and raises awareness for others.
Puzzle-Like Gemstone Designs
An expansive collection of unique gemstone carvings from Steve Walters was on display at the 2022 AGTA show.
Social Media Success for Black Opal Direct
Black Opal Direct’s use of social media increases sales during the COVID-19 pandemic.
18th Annual Sinkankas Symposium
The 2022 Sinkankas Symposium will cover alexandrite and other color-change gemstones.
Cuprite and Malachite in Agate from the Yanyuan Region, Sichuan
Rare identification of two kinds of copper-bearing inclusions in agate from the Yanyuan region in China.
Large, Rare Faceted Collector Gems
Rarely faceted colemanite and phosphophyllite of record-breaking size were on display at the AGTA show.
One-of-a-Kind Designs from Zoltan David
Iconic jewelry designer Zoltan David continues on his path of exploration in metalsmithing after 42 years of creating his one-of-a-kind designs.
Dyed Fluorite
Testing two samples of green rough submitted for emerald identification reveals dye concentrations along fractures.
HPHT-Processed Natural Type Ia Diamond
New York laboratory receives resubmission of HPHT-treated diamond that changed from a dark yellowish brown to a deep yellow-orange during treatment.
Repaired Grandidierite
The Carlsbad laboratory receives first submission of repaired grandidierite.
Hematite Crystals in Diamond
Tiny hematite crystal inclusions identified along two fractures in natural diamond.
“Fishbone” Inclusion in a Burmese Peridot from Mogok
Examination of Burmese peridot with impressive size, color, and clarity reveals a fishbone-shaped inclusion.
Sugar/Heat-Treated Opal
At the AGTA show, lapidarist James Carpenter explains his use of sugar/heat treatment to enhance opal.
Unusual Repair of a Natural Emerald
Glass identified as the raw material used to conceal damage of a natural emerald.