How are you planning on venting the cooktop?

Why do you want the cooktop on the island and how large will the island be?

Cooktops on islands are almost never a good idea and people don't realize that the majority of their time cooking is not spent in front of the cooktop but next to a sink prepping.

Thanks for the response. Planned to have an in-ceiling unit to vent, island is looking to be 10'. 36" cook top + 3.5ft on each side for food prep. 1 side will have a small sink. Comment is well received and we are flexible in our planning, eg. having the cooktop flanked by the fridge and wall oven

I would put a sink in an island before a cooktop....splattering and reaching hands scare me along with the venting issues and visuals.

Wouldn’t there be a seam between the two materials? How would you seal it? I don’t think it would be as clean a seam as two pieces of marble joined together. Maybe I’m wrong. You would have to ask a fabricator. I bet this would be a pretty unique situation.

CPARTIST, I'll work on posting a floor plan today
ZALCO, my brother had a granite/stainless combo and the stainless fit like an over counter sink. BUT, to make it as seamless as possible, they thinned off a small layer of the stone at the overlap point so that the seams were flush. very clean

CPARTISH, here is a screen grab of what we are looking at. Dining off the kitchen, 4' wide open corridor on the left and 3'6" doorway from the mudroom into the kitchen on the bottom right.

Those ceiling contraptions would need to be as big as your kitchen to actually be useful. Then you have to keep your ladder handy and try not to drop anything on the glass top to clean the filters every week. It ends up not getting done, and you end up with rancid grease dripping down the duct and into your cabbage and corned beef.

Island vooking zones are usually done badly, with not enough room for cooking and prep. This idea follows that same predictible pattern. The home could have been designed to make a kitchen with island cooking —WITH a hood— workable. It wasn’t.

You have plenty of room for the cooktop on the 15' wall. Why not go (left to right) refrigerator, cooktop, ovens there, prep sink on the left end of the island, and cleanup sink and dishwasher on the 13' wall (which looks like exterior to allow for a window?)