A comprehensive look at the gemological features and advanced analysis of blue and fancy-color sapphire from the agricultural area of Muling, China.

A detailed spectroscopic investigation of the color of pink spinel reportedly from the Kuh-i-Lal deposit in the Pamir Mountains of Tajikistan.

An examination of a beaded bracelet reveals calcite powder to enhance the imitation of natural root amber.

A report on the examination of “gel-filled” turquoise produced in Zhushan County in Hubai Province, China.

The life of one of Australia’s leading opal authorities is remembered.

Review of Pegmatites and Their Gem Minerals, by Michael Menzies and Jeffrey Scovil.

Focus on supporting ambitious goals, developing education content

An overview of the Fall 2022 Gems & Gemology content.

Forging a significant new collaboration

Resources, training available now

The largest in-person career fair in the gem and jewelry industry

GIA, the leader in gemological research, education and science-based gem identification and grading services, is expanding its gem origin services to provide retailers and consumers with the diamond source information they demand.

A fascinating diamond crystal inclusion displaying a transparent, ghost-like appearance is identified in a Faint green diamond.

Numerous etch channels are observed in a 5.19 ct type IIa natural diamond.

A unique jade cabochon with vivid green bodycolor and pronounced chatoyancy is examined at a lab in Shanghai.

Two impressive diamonds from Arkansas and Colorado are featured in the Great American Diamonds exhibit at the Smithsonian’s National Museum of Natural History.

The historic discovery of a Maine tourmaline source is celebrated through jewelry designs featuring gems unearthed 50 years ago.

Discusses the unusual surface characteristics of ekanite from secondary deposits in Sri Lanka.