Apparently this is what the Gutians looked like, if this is the case they they probably were an Iranic tribe unmixed:
According to the historian Henry Hoyle Howorth (1901), Assyriologist Theophilus Pinches (1908), renowned archaeologist Leonard Woolley (1929) and Assyriologist Ignace Gelb (1944) the Gutians were pale skinned and blonde haired.[10][11][12][13] This identification of the Gutians as fair haired first came to light when Julius Oppert (1877) published a set of tablets he had discovered which described Gutian (and Subarian) slaves as namrum or namrûtum, meaning "light colored" or "fair-skinned".[14][15] This racial character of the Gutians as blondes or being light skinned was also taken up by Georges Vacher de Lapouge in 1899 and later by historian Sidney Smith in his Early history of Assyria (1928).[16][17] Ephraim Avigdor Speiser however criticised the translation of "namrum" as "light colored". An article was published by Speiser in the Journal of the American Oriental Society attacking Gelb's translation.[18] Gelb in response accused Speiser of circular reasoning.[19] In response Speiser claimed the scholarship regarding the translation of "namrum" or "namrûtum" is unresolved.[20]
