Are 450cc and 500cc Implants Too Big for D Cup Breasts?

You need to try on sizers to see if you like a particular volume.  You do not look like a D cup.  The sizes you mention look like they will fit you well.  You just need to see which you like best by trying on the sizers.

         Based on your
pictures, it appears that you have significant breast sag in the presence of
moderate breast volume. Without the ability to perform a physical exam, it’s
very difficult to make an accurate assessment of your situation.

 

         It would appear that
correction of your problem will require a breast lift. This breast lift will
result in your breasts appearing larger than they did when they were saggy. For
this reason alone, a 500CC implant might be too large for your body.

 

         It’s important to
understand that correction of this type of complex problem will require that
your surgeon be able to make decisions in the operating room. It’s important
that you discuss your aesthetic goals with your surgeon and it’s also important
that you realize that decisions will need to be made in the operating room that
will optimize your result.