Circle of Hope

Circle of Hope is a Priest-only ring from a quest line involving Sunken Temple. While it is a decent ring, the general recommendation is for Priests to choose the Blessed Prayer Beads, since the trinket provides unique functionality. This ring does not.

Source
Circle of Hope is a quest reward from the quest Blood of Morphaz (quest). This is a chain that starts with High Priest Rohan (Alliance) or Ur'kyo (Horde).