Wants a C Cup Size
Bra cup sizes vary from brand to brand, so a final cup size can't be promised.
Having said that, for your body frame a 400-425 cc implant will probably be in a C cup range.
I suggest you review lots of before and after pictures to find the breast size you like. Be sure and find pictures of patients who are similar to your height, weight, and breast shape.
Thanks for your question and good look!