The album was announced accompanying the release of a new song supporting the Occupy Wall Street movement, "Bringing You Down (A New World Overthrow)", which was re-recorded for the album. On February 10, 2012, they released a video on YouTube announcing that their new album would be titled Diamond and would be released on March 27, 2012.[2] On February 20, a new song named "Against Them All" was released on iTunes and through the Sumerian Records YouTube account.[3] The video for "We Still Believe" premiered on March 21 and is the official lead single from Diamond.[4] A video for an acoustic live version of the song was also released the same day.[5]
A limited vinyl edition of the album, labeled as Decade Edition, was released in 2014 to commemorate the 10th anniversary of the band. This edition, including 3 bonus tracks, was only available at the band's merchandise table on the "Fuck the Message" Tour and was limited to 1,000 copies.[6] This edition was later available for digital download.