A white gem on a fillet of mithril. There were two gems by this
name, one taken by Saruman from the body of Isildur, and the other
made for Valandil, Isildur's son in Rivendell. Historians believe
that the Elendilmir was originally made in Númenor, for Silmarien.
The first was found in Orthanc in the Fourth Age. Apparently, the
Elendilmir was the symbol of the kinship of Arnor.
Other names for it included: