An overview of the Summer 2024 Gems & Gemology content.

Learn the latest on Madagascar sapphires and demantoid garnets from Wim Vertriest, GIA Manager of Field Gemology.

A new type of transparent moonstone seen in Tucson displays a distinct orange flash effect.

Examines turquoise from northern China and identifies a geographic origin indicator to distinguish it from other Chinese sources.

Characterizes a translucent variety of jadeite jade from the Morales mine in Guatemala.

Provides a basis for analyzing colored coatings on a variety of polished gemstones.

Several jewelry designs incorporated historical artifacts at the Tucson gem shows.

An overview of the 2024 Tucson gem shows.

A pair of watermelon tourmaline slices from the Cruzeiro mine displays a rainbow of colors.

Colorful rays of light are observed in an Australian rainbow lattice sunstone.

Explores the journey of superdeep diamonds to the earth’s surface.

A visit to the Tucson Fine Mineral Gallery uncovers impressive gemstone-related artwork.

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

Beryl and emerald specimens from a recent discovery in Newfoundland are examined at GIA.

A CVD-grown diamond exhibits an interesting clarity characteristic.

Several vendors offered a variety of impressive non-nacreous pearls at the Tucson gem shows.

An overview of the Spring 2024 Gems & Gemology content.

Learn about Texas topaz history and geographic origin research.

Discover a bicolor chameleon diamond, a diamond with carbon dioxide, and a pink square inside a diamond.