I have Individual merino leather in my '18 f33, but the ordering guide did not indicate it was possible. If it's one of the "standard" f33 Individual colors, it's normally $2,500 on top of the high end package leather. Best to call your dealer who knows, understands and is experienced with Individual cars.
'20 X3 M40 • Alpine over Cognac • BBS CCR • Cerium exorcism
...and a bunch of old English motorcycles