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Figure 1. These indicolite tourmalines (9.27 and 6.16 ct) from Zambia are among the variety of gems Virtu Gem offers. Photo by Robert Weldon.

More on Virtu Gem’s Ethical Supply Chain Practices

Erin Hogarth, January 26, 2024

An update on Virtu Gem’s mission to improve artisanal mining and gem trading practices in Kenya, Malawi, and Zambia.

Laura Mae, Amanda Jean, and Ilan Portugali are some of GIA’s featured graduates on the Alumni Collective website.

GIA Alumni Collective

GIA Staff, January 26, 2024

The Alumni Collective celebrates GIA alums from all over the world.

Figure 1. A silver brooch containing a large Slovak opal (77 ct, 34.5 × 25 × 13 mm) and 48 diamonds. The opal was initially purchased for Louis XVIII’s personal collection. In 1824, it adorned the clasp of Charles X’s coronation mantle, and around 1853 it was remounted onto this brooch for Empress Eugénie, which has been preserved. Photo by Peter Semrád; courtesy of the National Museum of Natural History in Paris (inventory no. MNHN 87.44).

Slovak Opal: A New Life for a Historical Gem

Peter Semrád, January 26, 2024

Reports on the recent production of precious and common opal from a centuries-old locality.

Figure 1. Artisanal mining in Liberia. Courtesy of Diamonds for Peace.

Artisanal Diamond Mining: Addressing the Knowledge Gap

Beth West, January 26, 2024

Diamonds for Peace conducts basic training on rough diamond grading for artisanal miners in Liberia.

Heitor Barbosa discovered Paraíba tourmaline in 1989 after almost a decade of mining. Photo by Duncan Pay.

In Memoriam: Heitor Barbosa

GIA Staff, January 26, 2024

The life of the discoverer of Paraíba tourmaline is remembered.

Figure 1. The “Infinite Blue,” an 11.28 ct Fancy Vivid blue diamond, sold for $25.3 million in Hong Kong. Courtesy of Sotheby’s.

Fall 2023 Auction Highlights

Erica Zaidman, January 26, 2024

Large blue and pink diamonds were among the top lots of the fall auction season, including the most expensive auction jewel of 2023.

Figure 1. Pauline Mundia, Susan Wheeler, Eric Braunwart, and Ola Erogbogbo-Oyeniyi discuss working with gem traders in source countries. Photo courtesy of RJT.

Chicago Responsible Jewelry Conference

Erin Hogarth, November 3, 2023

A report on the seventh annual Chicago Responsible Jewelry Conference.

Akshay Poddar, Melizza and Jennifer Tanpoco, and Julia Hackman Chafé are some of GIA’s featured graduates on the Alumni Collective website.

GIA Alumni Collective

GIA Staff, November 3, 2023

The Alumni Collective celebrates GIA alums who uphold GIA’s highest standards.

Figure 1. Survey participants identified their top consideration when purchasing colored stones or colored stone jewelry.

Survey of Colored Stone Preferences Among Younger Generations

Laura Inghirami, November 3, 2023

An online survey assesses current colored stone preferences in consumers under 35.

Botswana’s Scintillating Moment

Robert Weldon and Russell Shor, July 25, 2014

Examines the history of diamond production in Botswana and the long-term outlook for beneficiation through value-added industries.

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