1. A story about an Egyptian queen who built the pyramid
I translate xanthē for the moment here as ‘fair’, as in the English expression ‘fair-skinned’, but we are about see that the translation ‘blonde’ is likewise valid. According to the relevant paraphrase of Manetho by Eusebius in this context, the description of Nitōkris in the surviving Armenian translation of Eusebius’ original Greek wording is rendered in Latin as flava rubris genis ‘blonde with blushing cheeks’. These descriptions of Nitōkris correspond closely to the meaning of the Greek name Rhodōpis, ‘the one with the rosy face’—or ‘the one with the rosy looks’. A striking point of comparison is the portrayal of the sensuous Beroe, daughter of Aphrodite and Adonis, in the Dionysiaca of Nonnus (42.75–78): the cheeks of this nymph are described as ‘having rosy looks [rhodoeidea]’ (77: ῥοδοειδέα) and showing a natural blush that needs no cosmetics simulating ‘the complexion [khrōs-] of a blonde [xanthē]’ (76: ξανθόχροϊ κόσμῳ).
In more recent research, however, this formulation by Reisner has not generally been supported. It has been argued, for example, that the image of Queen Hetep-heres II shows her wearing a blond wig, and that she was not necessarily a natural blonde. 
2. A story about an Egyptian courtesan who built the pyramid
Looking at the overall context of the text in which this passage is embedded, I note with great interest how the narration keeps stressing the diversity of Egyptian traditions regarding the historical circumstances that led to the building of the three great pyramids at Giza:
3. Egyptian traditions about princesses, courtesans, and queens
4. The story about a non-Egyptian courtesan named Rhodōpis, according to the version told by Herodotus
- Herodotus does not believe the reportage of ‘some Greeks’ as opposed to others (metexeteroi … Hellēnōn)—Greeks who claim that Rhodōpis commissioned the building of the third and smallest of the three pyramids at Giza.  Herodotus says that this reportage is incorrect,  and he prefers to accept an alternative version, according to which it was the pharaoh Mukerinos who commissioned the building of this third pyramid. 
- The pharaohs who commissioned the first and the second of these pyramids were reportedly Kheops and Khephrēn. 
- As we know from Egyptian sources, the three pharaohs Kheops and Khephrēn and Mukerinos ruled during the Fourth Dynasty, dating from the third millennium BCE.
- By contrast, as Herodotus says, the courtesan named Rhodōpis must have lived in a much later era, during the rule of the pharaoh Amasis.  As we know from both Egyptian and Greek sources, this pharaoh belongs in the Twenty-Sixth Dynasty, and he lived in the sixth century BCE.