I saw a cane maker on Youtube use a pipe cutter to form the shoulder of a peg joint for fitting a cane handle one time, but he only cut in about 1/8th to 1/4 inch. I very much doubt it would cut the whole way through, but I've never tried it. Never tried ratchet shears but I think they'd have a tendency to crush as much as cut. Same with lopping pruners. They're more for fresh wood (or at least wood you don't care how it looks when cut.)
I imagine that the finer the saw teeth, the less noise it would make when cutting, so maybe a razor saw like those used by model railroad hobbyists.
I imagine that the finer the saw teeth, the less noise it would make when cutting, so maybe a razor saw like those used by model railroad hobbyists.