Bella Hadid Most Beautiful Woman br in the World, According to Science.br The Daily Mail reports cosmetic br surgeon Dr. Julian De Silva used br the Golden Ratio of Beauty Phi br to crown Hadid.br The measure is allegedly br adapted from the “golden ratio” br used by artists and architects br during the European Renaissance.br Professor Kendra Schmid explained br the mathematical formula in 2009 br on'The Oprah Winfrey Show.'.br Dr. Schmid said the perfect face consists br of ears equivalent in length to the nose br and the width of an eye equivalent to br the distance between the eyes.br Beyoncé, Amber Heard and Ariana Grande br followed in the ranks.