Information Until recently, spinel was an underappreciated gem with little consumer recognition. Increasing demand for ruby alternatives rekindled appreciation for spinel’s rich red color and history. In ancient times, southeast Asia’s mines yielded exceptional large spinel crystals, which became the treasured property of kings and emperors, often passing through many hands as spoils of war.

Birthstone Month Spinel was recently added as an August birthstone, sharing this month with peridot.

Colors The most valued spinel colors are bright red, cobalt blue, and vivid pink and orange. Pale lavender is more affordable.

Inclusion Spinel with no visible inclusions is preferred. The more prominent the inclusions, the less valuable the gem.