i dont know about all gouramis, but generally, ive heard that the female is less colored than the male. in your case, i would say its a male, however i could be wrong. Next, in case that isn't the case, with most fish , the males bottom fin, by its butt, is pointed, and the females is slightly more fanned out. I am aware that it is rather difficult to get a hold of a female gourami. It is still possible to beat all these chances, but i wouldnt say it is likely. i hope i helped