800cc implants? I am 6'0, 175 and I don't think it'd look super unnatural. (Photos)

A point which is often under appreciated is that of anatomy and starting point. Any implant will add volume to the volume which is already present. The implant is additive. A particular volume will not necessarily confer the same cup size to different patients (often times it will not even confer the same cup size to different breasts in the same individual...remember they are "sisters" not "twins"). 
When sizing patients, there are a number of useful tools including:
-3D imaging (has the added benefit of offering a volumetric analysis of the pre-operative breast)
-Breast sizers (rice bags)
-Goal photos
I recommend that patients commit to a particular look rather than a cup size. Once a patient settles on a look that pleases them the overall cup size increase becomes less relevant.The key to obtaining a natural result is to stay within the parameters defined by your BWD. This will ensure that you avoid the dreaded "fake" look. 
It is important to understand that "natural" is a relative term. A "natural" appearing result on one patient may give a very "unnatural look on another. Breasts are composed of fat and gland. Thinner women with smaller frames rarely have large breasts. Based upon your photos alone, 800 cc is entirely too large for your frame. I would recommend more conservative sizing. 
As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Thank you for the good question. It is not necessarily that larger implants are more problematic;  it is that the use of a breast implant  that is TOO  large for a patient's frame can be problematic.  
Generally speaking, every patient undergoing breast augmentation surgery should understand that their anatomic starting point will limit the outcome of breast augmentation surgery.    In other words, a patient's starting anatomy will limit how large of a breast implant can be utilized safely. The use of a larger breast implant (than what is safely "allowed" by the patient's anatomy) can be problematic;  potential problems include breast implant displacement/malpostion issues (such as bottoming out, lateral displacement, symmastia...) and/or significant breast implant rippling/palpability.
Generally, in my practice, I suggested patients aim for an outcome  only as large as "necessary" to make them happy;  again, pushing the envelope can be problematic.  Generally speaking, the best online advice I can give to ladies who are considering breast augmentation surgery ( regarding breast implant size/profile selection) is:
1. Concentrate on choosing your plastic surgeon carefully. Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.
2. Have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining breast implant size/type/profile will most likely help achieve your goals. 
In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. For example, I have found that the use of words such as “natural” or "D or DD cup” etc means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on him who makes the bra; therefore, discussing desired cup size may also be inaccurate. Again, the use of computer imaging has been very helpful during the communication process, in our practice.
3. Once you feel you have communicated your goals clearly, allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals. Again, in my practice, this decision is usually made during surgery, after the use of temporary intraoperative sizers.
I hope this helps. Best wishes for an outcome that you will be very pleased with. 

 
 

Hello, and thank you for your question. This is a difficult question to answer without looking at your preoperative pictures and getting some idea what her goals and expectations are. Certainly, an 800 cc implant is a very large implant and may be too much for your frame. All of this depends upon your examination and measurements and a look at you are after. Remember, long-term you may not be happy with such t large implants in that they make cause significant back neck and shoulder issues. Discussed all of this with a qualified board certified plastic surgeon in your area with an  in person consultation. Best of luck.