Just out of curiosity, is Nauglamir created or is the silmaril "free"? Otherwise I find it hard to believe that Telchar would start a war and destroy both Melian's court and the court of Dior which he recently helped to build up. He's got no right to the jewel. But if it is indeed a part of Nauglamir, then I can understand a possible claim from the dwarfes, rightful or not... But I doubt Telchar is some sort of thief.
One way of creating elf vs elf war could be to have Celeborn killed and make it look like something Dior or Melian was responsible for. That could send Galadriel into some sort of bloodthirsty rage and since she's now queen of Nargothrond that would create a war. But it seems a bit unlikely.
I'll go with the easy solution because of reasons stated in my previous post and choose (EDIT: or rather pre-previous post)
++Melian
No saving of votes here

But one can always change a vote, right?
__________________
Three switched witches watch three Swatch watch switches.
Which switched witch watch which Swatch watch switch?
He who breaks a thing to find out what it is has left the path of wisdom
~Lurker...