Two natural diamonds containing cloud inclusions that resemble stars are examined in the Carlsbad laboratory.

Hexagonal etch features are observed on the prismatic faces of heliodor and aquamarine crystals.

Reviews the advancements and major trends in laboratory-grown diamonds observed by GIA since 2007.

A natural faceted diamond displays a prominent square-shaped cloud under the table.

Provides a visual guide to the internal features of tourmaline as well as tourmaline inclusions in other gem hosts.

Examines gem-quality cassiterite from southwest China and analyzes trace element chemistry to distinguish it from Bolivian cassiterite.

Characterizes an anorthoclase variety of alkali feldspar found in southeast Vietnam and evaluates its potential for commercial use.

A GIA student from the New York campus receives recognition for a necklace design featuring diamonds, lavender jade, and akoya pearls.

A graduate of GIA’s Jewelry Design program in Taiwan is the recipient of the 2023 Gianmaria Buccellati Foundation Award.