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Sellers and buyers alike were delighted to be back at Tucson for the show season after a two-year absence.

Four-billion-year-old meteorite carved into a life-sized human skull draws attention at the 2022 AGTA show.

The first installment of this column explores the potential role of modern-day deep-focus earthquakes on diamond growth.

Approaching his 50th anniversary in the business, Stephen M. Avery (Lakewood, Colorado) reflected on his journey to becoming an award-winning lapidary artist, detailing his signature cuts and gem sets and offering advice to up-and-coming gemstone cutters.

At the AGTA show, we spoke with Natassa Patel, who along with her mother, Salma, owns and operates True Blue Opals and Gems.

Custom knife maker Loren Feldman details his craft, including his use of rare and fascinating materials such as gem dinosaur bone and meteorites.

Meghan Simmons, a graduate of GIA’s Jewelry Design program at the Carlsbad campus, received the fifth annual Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design.

Characterizes yellow topaz from this historical source, with particular emphasis on its photo luminescence behavior.

An overview of the Spring 2022 Gems & Gemology content.

After 15 years in the making, Jeffrey Bilgore’s stunning blue sapphire pendant makes its debut at the AGTA show.

One of the more subtle inclusion scenes gemologists sometimes observe in natural diamonds is the presence of crystallographically oriented structural defects known as “internal graining.”

The Tokyo lab recently identified a unique localized distribution of cloud-like inclusions in a chrysoberyl.