i don't use cast iron for my steaks but i do have a Lodge cast iron pan.
i use a lighter weight one and sear at a lower temp to form the crust on both side, then finish in the oven.
many prefer to use cast iron and not put steak i oven. i have over-active smoke alarms that go off way too easily so i use the oven method!
Lodge makes a bunch of different sizes i would go for a 12 or 14 inch.
good luck and Merry Christmas to you and Mary.
Since you are a chef I thought you might be able to help. I'm looking for a black iron frying pan to fry steaks in. I have a Griswold #8 and it works great. I need another one or something like it to give my steak eating daughter for Christmas. Have you got any ideas?
I shipped the pencil poppers and 4 lead head jigs that need to be finished... I thought I would throw them in as a "late fee to me." (2) 3oz. and (2) 4 oz. I dip them in oil base paint. Paint them and use bucktail or synthetic to finish...