“It sparkles with cold energy.”
“Ugh. This one is ugly.”
“Blue like... er... a sad bird?”
“IT IS SLIGHTLY COLD”
“Glittering and cool.”
“The color of the ocean!”
“Such a cool blue.”
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 and as a drop from Blue Hounds on the Surface World, from Earthquakes and Stalagmites in Caves, and from Ancient Statues and Ornate Chests in Ruins.
In the Reign of Giants DLC, Blue Gems have a 0.04% chance to be dropped by Tumbleweeds.
In Shipwrecked DLC, Fishing with Trawl Net in deep Ocean has a small chance to catch a blue gem. The chance is higher during Hurricane Season and Dry Season. Magma Piles found in Magma Fields also have a chance to drop Blue Gems when dug.
Don't Starve Together Edit
In Don't Starve Together, Blue Gems can also be obtained by killing the Dragonfly.