Advanced analytic techniques are critical for separating Ethiopian feldspar from Oregonian and copper-bearing feldspar with undetermined color origin.

In early February, despite the early phase of the COVID-19 outbreak, the Tucson shows were well attended and sales were brisk.

The unusual six-rayed trapiche pattern, identified mainly with Muzo emeralds, has also been discovered in Mogok sapphires and Mong Hsu rubies.

Investigates the chemical, physical, and gemological properties of attractive rhodonite-rich rocks from this Swiss deposit.

Picturesque beaches and lush green jungles are not the only attractions that make Bali the most popular tourist destination in Indonesia.

Numerous needle-like inclusions exhibit vibrant interference colors in a suite of pallasitic peridot from the Jepara meteorite.

A transparent supply chain and the education of artisanal miners were two of the many topics discussed at Tucson’s first Ethical Gem Fair.

Diamond inclusions are relatively common guests in diamond crystals.

On February 5, 2020, Gems & Gemology launched a Facebook group dedicated to gemology and research published in the journal.

Violent kimberlite eruptions impact the surface features of diamonds, which can give scientists useful information about how diamonds react with the fluids in the mantle.

This year at the AGTA show, the number of booths selling skillfully carved, fantasy cut, or expertly recut items was noticeably higher than in past years.

A delicate, ethereal necklace depicting a diamond butterfly caught in a gem-studded spider’s web won the third annual Gianmaria Buccellati Foundation student jewelry design contest.