|| It sparkles with cold energy.
The Blue Gem is an item used to craft several Magical Items. It can be used to craft the Ice Staff, Chilled Amulet, and Purple Gem.
Blue Gems can be used to turn Chester into Snow Chester by placing at least one in each of his inventory slots on a full moon. Snow Chester's special ability is preserving food longer like an Ice Box.
Blue Gems can be obtained from Graves, as a drop from Blue Hounds, from Earthquakes and Stalagmites in Caves, and from Ancient Statues and Ornate Chests in Ruins.
Reign of GiantsEdit
In the Reign of Giants DLC, Blue Gems have a 0.04% chance to be dropped by Tumbleweeds.
- The Blue Gem's element appears to be ice; its opposite being the Red Gem.
- When examined by most Characters, they will say something about the Blue Gem feeling cold, implying that it has chilling properties.