If you mean the blurite sword, before you complete the quest, drop the sword, and give the dwarf more ores to make a sword. he will make you one, and then you pick up the other sword you dropped. you can do this as many times as you like, but it is not worth doing because it is weaker than a bronze dagger, and is untradeable. i hope this answers your question.
Longsword.
You cannot buy the blurite sword, you must smith the sword during a quest called "the knight's sword". At the end you get to keep it.
You can make a Blurite Sword in RuneScape as long as you are completing the quest The Knight's Sword. After you complete the quest you cannot obtain the sword again as you cannot trade the item with other players.
Runescape god swords are in fact for members but the closest weopan you can get to a god sword is the dragon 2h sword. the most expensive god sword is around 50 million gp.
vestas sword, but the best weapon is chaotic maul.
Gwd
buy a saradomin sword
The Sword you used to kill the demon with, the sword is good against demons.
pick pocket ham people.
You can repair them at a Player Owned House.
Void stares back
the sword Excalibur is king Arthur's sword.