[Voralphion]

Aragorn was in possession of the elendilmir at the time of the battle at the black gate. He was wearing it when he got off the black ships at the battle of Pellanor Fields. It says that he was wearing a jewel on a silver fillet on his brow. This of course wasn't the original elendilmir, that was lost with Isildur and found by Sauraman, and was found when Aragorn and Gimli went through Isenguard. The elendilmir that Aragorn was wearing at the battle was the second elendilmir made by the elves of Rivendell for Valandil after Isildur's death.