Diaspore, an orthorhombic aluminum oxide hydroxide mineral with the formula AlO(OH), is a relative newcomer to the jewelry scene, with some stones possessing a captivating ability to change color between pale green, yellow, pink, and purple when viewed in different sources of light.

Lee Downey, owner of Artifactual (Tucson, Arizona), spoke with us in early 2020 about his 35 years in the fossil ivory carving trade and the impact of ivory bans on his business.

There’s only one place on earth where the general public can prospect for diamonds directly from a primary kimberlite pipe: Crater of Diamonds State Park.

A master gem carver bases his latest design off a stunning stained glass window when attempting the world’s largest known cut kunzite.

Scientists in Russia construct an origin story through the analysis of petrified wood popularly used in the souvenir trade.

Gem silica, also known as “chrysocolla chalcedony,” is considered the most valuable variety of chalcedony.