Yes, it certainly does look like an egyptian scarab but it has other qualities that I've never seen, for example A LOT of silica, the design itself seems to be very eroded and it is SO almost "lime green" (ok, lime green with a tint of blue) with veins of almost a forest green running through it and a kind of brown cast (very light, it could be an optical illusion). I've never seen a stone that looks like this. The design does look scarab for sure but its my understanding- probably totally wrong- that this doesnt mean it came from egypt. But the stone would probably have to be soft enough to take this kind of etching although it does not look deeply carved and while it does look highly polished only half of the stone (the top half) really looks like it has any etching (grooves).

I could not have picked a more complicated piece to learn all this on, could I have?