wide bowl, and is sitting very close to the backsplash now, so fabricating/polishing the opening for another undermount single basin sink may not work, and would probably cost you at least $400 from a granite installer, (not to mention plumbing work for drain/disposal, etc.), even if you find a sink to fill the width of the opening. It's much easier to fabricate/polish/install the sink before the granite is attached to the cabinet/subtop so all of the work to install now has to be done from underneath, which will require 2 people. Sometimes, the rim of an undermount sink is actually sitting on a subtop, and is "sandwiched" between that and the granite. The only other option I can think of to make the work/cutouts feasible would be a large single-basin Apron sink, assuming your sink cabinet is large enough to accommodate, and that will also require some modification to your cabinet. I think I would live with it as is unless you want to buy a whole new piece of countertop.

reinstall it. Risk is too high and the profit too little. I recommend you stick with what you have. Tim

Or have you already figured that part out? If not you need to do this first before you go through all the time and trouble attempting to remove this bowl.