Will a High Profile Silicone Breast Implant 200 Cc Look Natural

In this instacne your BWD is a critical measurement as well as the amount of soft tissue coverage your breast offers. I would make this decision after using sizers but it could be a reasonable option.

Your question is a common one, but the first thing to recognize is that what you mean by "natural" may not be the same as what your plastic surgeon is picturing. I am thinking about a study from a few years ago in which patients and plastic surgeons were shown tracings of breasts in profile and asked to rate them on natural appearance.
The patients typically chose a higher profile-type look. In my view, like most of the plastic surgeons in the study, high profile on a thin woman will be harder to pull off. Bottom line is choose the size you want based on volume, then select the implant with the right base diameter for your own measurements.