a ceremonial alexandrite dagger

[Nothing]

I've had this for so long I can't recall where I got it, but never thought is was particularly valuable. I held onto it and used it as a skinning dagger cause it's the only blade I've seen made of the metal. Recently I've seen a couple other alexandrite weapons being offered for sale as prices that surprised me... so I've gotten curious about it's value:

As you sing, you feel a faint resonating vibration from the alexandrite dagger in your hand...

It has a bonus of -19 from a normal dagger, and the way it vibrates in tune with your voice tells you that it requires skill in edged weapons to use effectively.
Roundtime: 15 sec.

>insp dag
You carefully inspect your alexandrite dagger.

After a careful inspection you determine that a ceremonial alexandrite dagger requires skill in edged weapons to use effectively.

It looks like this item has been mainly crafted out of alexandrite.

[Menos]

Alexandrite itself is not particularly valuable. The landing weapon shop can custom order most weapons with it as a material. All I can think is that it is possible that those other weapons you saw had been enchanted. Alexandrite is -19 and had a -500 mod to enchanting so it is very difficult to produce a weapon with any sort of positive enchant. The sellers might have put a premium cost on that work.

[Nothing]

ok, that makes sense.