Green-Blue Maxixe-Type Beryl
A transparent greenish-blue pear-shaped gemstone, reportedly from Madagascar, is discovered to be a Maxixe-type beryl.
Twelve-Rayed Star Sapphire from Thailand
A black star sapphire produced from eastern Thailand, showing both golden and silver rays, is studied at GIA’s Bangkok lab.
Discovery of Colour-Change Chrome Grossular Garnets from Ethiopia
The first known group of colour-change gem-quality chrome grossular garnet, reportedly from Ethiopia, is examined in GIA’s Carlsbad lab.
Trapiche-like Amethyst from Brazil
Four amethyst cabochons are unique due to inclusions that create a trapiche-like appearance.
Update on Trace-Element Chemical Characteristics of Golden Sheen Sapphire
An update the gemmological and chemical characteristics of golden sheen sapphires from Kenya.
Spring 2000 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.
Peter J. Dunn (1942–2017)
An obituary for influential mineralogist Peter J. Dunn.
World of Gems Conference
A report from the fifth World of Gems Conference, held on 23-24 September at the Loews Hotel in Chicago.
Celebrating 50 Years of Tsavorite
An exhibition at the 2017 AGTA Tucson Gem Fair celebrates the work of Campbell Bridges.
GSA 2017 Annual Meeting
Experts shared the latest research on gemstones at the Geological Society of America annual meeting in Seattle.