Mercury Free Mining Pilot Program

続きを読む

Skull Carved of Meteorite

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

続きを読む

Spectacular Yellow Sapphire from Sri Lanka

160 ct yellow sapphire rough from Sri Lanka.

続きを読む

Stephen M. Avery: Celebrating Half a Century in Gem Cutting

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.

続きを読む

Tucson 2022 Overview

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

続きを読む

Washington Jade Update

At the AGTA show, Rod and Nathaniel Cook of Washington Jade (Edmonds, Washington) told us about shifting their focus to cat’s-eye blue and bluish green nephrite jade.

続きを読む

Blue Sapphire Lord of the Rings Pendant

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

続きを読む

Conversation with True Blue Opals and Gems

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

続きを読む

Custom Knives by Loren Feldman

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

続きを読む

Fifth Annual Gianmaria Buccellati Foundation Award Winner

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.

続きを読む

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.

続きを読む

Natural Near-Colorless Type IIb Diamond

Rare boron-bearing natural diamond identified.

続きを読む

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.

続きを読む

A Pink Sapphire Ring with a Message

Exquisite triple-halo pink sapphire ring commemorates breast cancer survival and raises awareness for others.

続きを読む

Puzzle-Like Gemstone Designs

An expansive collection of unique gemstone carvings from Steve Walters was on display at the 2022 AGTA show.

続きを読む

Social Media Success for Black Opal Direct

Black Opal Direct’s use of social media increases sales during the COVID-19 pandemic.

続きを読む

18th Annual Sinkankas Symposium

The 2022 Sinkankas Symposium will cover alexandrite and other color-change gemstones.

続きを読む

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.

続きを読む

Large, Rare Faceted Collector Gems

Rarely faceted colemanite and phosphophyllite of record-breaking size were on display at the AGTA show.

続きを読む

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.

続きを読む

前へ1 / 2 ページ次へ

あなたにおすすめ

YMAL GIA Ed
GIAのロンドン新キャンパスを発見
Learn About NextGem
GIA NextGem™ 小売業向けダイヤモンドトレーニング
Explore GIA Laboratory Promotional Offers
GIAラボのプロモーションオファーを探る
Shop the GIA Store
GIAストアで購入