BigBrother said:
Everybody relax. She's either a female dwarf or goblin.
I could be wrong but I'm pretty sure if she's a dwarf, she should have a beard.
EDIT
They are in voice and
appearance, and in garb if they must go on a journey,
so like to the dwarf-men that the eyes and ears of other peoples cannot tell them apart.
The Return of the King: Appendix A - III Durin's Folk
For the
Naugrim have beards from the beginning of their lives, male and female alike; nor indeed can their womenkind be discerned by those of other race...
The War of the Jewels - (Part Two) The Later Quenta Silmarillion: XIII Concerning the Dwarves