Your knife pic didn't load.
7 pictures of different stones , and zero of a knife.
Precious stone(s) inlet into a blade? Please post the picture of that!
It defies logic in a blade to be used but that's alright.
Maybe it is from Tuts tomb. And decorated the hard way instead of inletting the handle.
Being a cutting tool has to be harder than the material cut and knife blades not being made from dried clay , how do you suppose precious stone inletting "holes" were made in hard stone?
And why?
Did ancient Egyptians in Pa. put handles on thier blister making blade hole drills?
Do you have even one other inlet blade from Pa. documented and submitted for peer review by a non bong smoking/non edibles consuming crack for desert curator to compare to?