500cc+ refers to an implant volume of 500 cubic centimetres or more. It is a large choice, but the result it gives is highly individual.
Roughly who it suits
As a very general guide, 500cc+ is often discussed by patients seeking a large increase. On a petite frame the same 500cc+ will read as a larger jump in apparent size than on a taller, broader frame. Your starting tissue and chest width change the outcome significantly.
Why width and profile still matter
Two 500cc+ implants can look very different depending on whether the volume is delivered as a wide, flatter implant or a narrow, projecting one. Surgeons fit the implant to your base width first, then use profile to dial in projection.
Getting it right
Trying sizers in a bra and reviewing before-and-after photos of patients with similar measurements is far more reliable than fixating on a cc number. See choosing implant size.