A nice example of imperial topaz, from Minas Gerias, Brazil. Topaz from this location is notable for its (natural) strong orange color and distinct elongated form. This crystal has a complete termination, and lustrous faces, though light reflecting off internal fractures make it look messier in the pictures. There are a couple edge chips.
As far as I am aware, the only other location that produces specimens with a similar appearance is Katlang, in northern Pakistan