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.

Two inclusions appear joined in a diamond host.

GIAミュージアムにはAmerican Jewelry Design Council（アメリカ宝石デザイン協会）から寄贈された現代ジュエリー作品が展示されています。

79歳のBob Halem（ボブ·ハレム）は、カラーストーンの世界に彼を惹きつけたセレンディピティの思い出話をすることが大好きです。

Jeff Masonは誤解されがちな宝石および予測不可能な市場について, 実に興味深い視点を提供してくれます。

Blue needle-like inclusions are analyzed in three quartz spheres.

Fungal inclusions are studied in two specimens of Burmese amber.

Immiscible two-phase fluid inclusions are investigated in a 0.48 ct Paraíba tourmaline.

A diamond ring from a claw game in Japan is analyzed.

A combination of growth and dissolution features contribute to a yellow diamond’s unique shape.

A study analyzing the thermal behavior of the 3161 cm^–1 IR feature in 10 natural corundum samples from various deposits.

A summary of presentations from 24 industry-leading experts at Converge.

GIA offered a variety of hands-on sessions for attendees during the Converge conference.

Examines samples of Mona Lisa turquoise to identify their chemistry and structure, revealing copper as a major elemental component of the material.

An eight-rayed star peridot with a star system made up of two different sets of inclusions is described for the first time.

GIA’s Tokyo laboratory examines three grossular garnets displaying six-rayed black inclusions arranged in a snowflake-like pattern.

A 2.50 ct natural type IIa/IaB diamond submitted to the Dubai laboratory shifts to type IIb after deep-UV excitation.

Organic-rich material is observed through an opening in a hollow natural pearl.

A 37.41 ct natural rough diamond with distinct pink and colorless zones is examined at GIA’s Botswana laboratory.