I carve stone, marble but they want to exclude, if you find the answer I would like to know. I thought about going to a monument supplier and ask for advice.

I `ve seen stonecutters using a bandsaw to cut large slabs of marble to use as a siding for a building.

Yes rent wet ‘a tile’ saw, take your time and dont force it will cut easily.

  If you cannot bevel the edge with the saw, use a small4 “grinder with a” diamond “blade. Were safety glasses

Probibly wet-saw. . . Water cycles with that cut. . .

A tile saw is not to cut marble tiles. You need a wet saw with a continuous blade (blade not teeth) to bevel the edge you need either a diamond grinding blocks of various grits or an angle grinder with diamond disks.