While some say beauty is in the eye of the beholder, science proves that may not always be true.
It's nice to believe your significant other is the most gorgeous person in the world, but there's a formula to prove they are not.
Called the "golden ratio," this mathematical equation is used to map out physical perfection of an individual based on the symmetry of their face. It was created by Ancient Greeks, and was used by Leonardo Da Vinci for Vitruvian Man, his famous portrayal of the perfect male body. While I wouldn't recommend you try it on yourself, that doesn't mean you shouldn't use it on your favorite celebrities.
Doctors used the golden radio to judge of the female British royals, which led to not-so-surprising results.
They used the faces of Meghan Markle, Kate Middleton, Zara Phillips, Princess Beatrice and Princess Eugenie, and determined Prince Harry's future bride had the most "perfect" face, with an 87.4% score.
But how did they calculate that?
Well, according to Harley Street surgeon, Dr. Julian De Silva, it all comes down to the position of your facial features, rated out of a 100 point scale.
"Meghan has beautiful facial symmetry and gets closer than any other princess to having what the Greeks considered the perfect face," De Silva said.
"Meghan has an almost perfectly shaped nose with a 98.5% score, her eye position is exactly right and her gorgeous V-shaped chin is far more classically beautiful than Kate," he added.
But how did the other royals stack up?