Knicksman20
Superstar
I think you mean diamond tipped saws breh. Diamonds are pretty expensive as a fuel source, not to mention they don't generate anywhere near enough energy, if at all. Vibration of the atoms within the diamond perhaps?
You serious about modern laser technology having trouble cutting giant blocks? Modern industrial spec laser cutters have a positioning accuracy of 10 micrometers and repeatability of 5 micrometers.
However, the pyramids had an average gap of only 5 millimetres on each side
Simply sublime engineering
The accuracy
These cuts resemble modern saws & machinery
This last site is at Puma Punku in Bolivia