Will High Profile Breast Implants Give Me Cleavage and Roundness?

Dayna,
It it hard to give you specific advice on breast implants without examining you and/or seeing pictures. The high profile implants will give you more projection for a given volume.
However, the final shape really depends on your body shape and tissue characteristics. For your other question, loosing weight, will make the implants look larger since the implants will stay the same size while your body will be smaller.

The question is straightforward but the answer is not. It is very difficult to determine the exact size and shape implant you will require to best match your ideal breast image without an examination by a board certified plastic surgeon especially when it comes to cleavage issues. Not just any board certified plastic surgeon, but one with many years of frequently performing breast augmentation surgery including different approaches, techniques and implant choices. This is because several measurements not to mention your breast characteristics are needed to determine the optimal implant size to obtain your goals. Without knowing these dimensions it would be difficult to make this determination. For example, the existing base width of your breast will determine, in many cases, the maximal volume per implant profile that you can accommodate. To illustrate; a 100 cc difference may make a significant difference with a narrow base width breast, but much less of a difference if you have a wide chest wall and wide breast “foot print”. Therefore, just because your friend may have a great result with let’s say a 350 cc implant to make her go from a “A” cup to a “C” cup size does not mean that you will have the same result with the same size implant. . Further simply placing implants in a bra to determine the size best for you is not always accurate as the bra often distorts the size, is dependent on the pressure the bra places plus the implant is outside your breast and not under it among other variables. Computer software morphing programs that automatically determine the best implant size can be helpful in some but not all cases (e.g. doesn’t work well in my experience with existing implants, sagging or asymmetric breasts). Using “want to be” photos however are useful if simply provided to the surgeon as I will further explain in the link below.

Post-operative cleavage will depend on your pre-surgery cleavage. You have wide-set breasts, which means you'll probably continue to have wide-set breasts after surgery. However, while you may have a bit of improvement, it may not be as much as you want. Unfortunately, your surgeon can only do so much to give you cleavage before it looks abnormal, since the implants have to remain centred underneath your nipples.