The Armadyl pendant is obtained during the Temple of Ikov quest if the player decides to side with the Guardians of Armadyl. After the quest it can be retrieved by talking to them. Players who sided with Lucien can obtain it by killing the Guardians after the quest. Players can obtain multiple Pendants easily by performing the drop trick. This pendant is by far the most easily obtainable protection against followers of Armadyl in the God Wars Dungeon.
The pendant of lucien and the Armadyl pendant look almost identical; however, the pendant of lucien's middle gem is green, whereas the Armadyl pendant's gem is silver. For females, both pendants have an identical red gem.
The examine text is joking at the fact that you receive the pendant of Lucien at the beginning of the quest, and then you receive another pendant later on (if you sided with the Armadyl Guardians).