It looks simple, as your models tend to, but there's nothing wrong with that; if every unit in the game used bulky, epic looking weapons, it would just look silly. On this weapon you've done a good job of making it look both functional and fine. It also has a good file size.
It does have its flaws, though.
The crest of the handle needs to be wrapped better. First, it's blurry, likely from having a practically microscopic portion of a texture wrapped to it. You should try to find a texture with something similar to its gem but larger so as to have better resolution when wrapped. It's also obvious that you didn't bother taking the time to properly wrap the rest of the area around the gem, as it's stretched and looks as though it's probably just whatever happened to be on that part of the texture. You should take the time to wrap every part of a model so that you don't have odd parts like that.
The crossguard also doesn't look very good, but that isn't really your fault; the crossguard in the source texture you used simply doesn't look very good. At the expense of adding a few extra polygons in order to wrap a better-looking metal texture into a similar shape, adding between 0.5 and 1 kb to the file size, you could make it look better, but that's a lot of work for a small difference so I'd understand if you didn't want to do this for a model that someone else asked you to fix and upload for them anyway.
With all of that in mind, I'm giving this a 3/5.