Demi Moore was nearest
As far as I am concerned, Demi Moore was beautiful in Ghost and never again. She just looked more and more hard-bodied and hatchet faced as time went on.
New Scientist once identified the young Grace Kelly
as having the perfect face , as defined by precise measurements.
But sometimes imperfection can be more attractive than perfection imo. The two that really appeal to me are Heike Makatsch
(Alan rickman's squeeze in Love Actually); and Natalia Tena
, Tonks in Harry Potter. Neither of them look anything like Grace Kelly, or like conventional beauties. But I think they are gorgeous and sexy and altogether lovely.