The mathematical equation known as Phi devised by the ancient Greeks sees the ideal breast proportion as This is where 45 percent of the breast would be above the nipple upper pole and 55 percent below the nipple lower pole. He selected celebrities with natural looking breasts including Denise Richards, Michelle Keegan, Miranda Kerr, Amanda Holden and Holly Willoughby. The Harley Street surgeon said the Golden Ratio in breasts for him is about creating breasts that are in proportion with the rest of the body. It can be found in the pyramids of Egypt, facial aesthetics and even the shape of the breast. One breast ratio which is mostly discussed in the media is Providing a natural slope in the upper pole with fullness in the lower pole.