Morning Mist and Silver Sun by StarSpray  

After

for the instadrabble prompts: star, martyr, box, sunset

Gil-galad was dead—martyred, some said, killed by Sauron himself in that last desperate fight—the bright star of the Noldor extinguished in the darkness of Mordor.

There were those who wanted Elrond to take up the crown, but he left it in its ornately-carved box. Elros had wanted kingship, but Elrond had always thought crowns too heavy a burden. Someday he would send it West, to await Gil-galad when he returned from Mandos.

As he watched the sunset in Rivendell shimmer rosy on the mountains, he opened another, smaller box. Inside, on velvet, a sapphire set in gold glittered.