Gems, alternatively referred to as gemstones, represented a category of mineral crystal that originated from within the galaxy. These gems possessed significant worth, exemplified by instances like the fire rubies located on Lothal, which is an Outer Rim planet. The Corusca gem, a purple gem serving as a form of currency, represents another variety. Gemstones were incorporated into artistic creations and could be acquired from black markets or various merchants, including Otor's Hub. The perceived value of specific gemstones varied significantly; those deemed insignificant by certain species or on particular planets could hold immense value elsewhere. During the era when the Sith exercised dominion over a substantial portion of the galaxy, the gemstone trade operated with considerably reduced oversight ruled.