|Release date||25 August 2016 (Update)|
|High Alch||1 coin|
|Low Alch||0 coins|
|Store price||Not sold|
|An artefact imbued with the power of the Dark Altar.|
Arceuus signets are obtained by speaking to Tyss after gaining 100% favour with Great Kourend's Arceuus House. They are required in building dark altars or occult altars within a player's Achievement Gallery.