Princess Diana has been confirmed as the most beautiful princess of all time, according to the ancient Greek 'golden ratio'.
The late princess, who passed away 25 years ago last month, apparently had a face that was perfectly in line with what the Greeks deemed ultimate beauty.
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Harley Street surgeon Dr Julian De Silva used the beauty determining technique on the faces of famous princesses and discovered that Diana had the highest score, the Daily Mail reports.
With a score of 89.05 percent on the mathematical formula that's now been digitised, all of Princess Diana's features bar her chin, lips and eyebrows scored above 90 percent – and even the areas that fell slightly short received a score of above 85 percent.
The doctor said: "Diana, Meghan and Kate are all very beautiful women.
"But when measured against the Greeks' Golden Ratio of physical perfection, Princess Diana comes out on top...
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"Diana scored highly for her face shape, the width of her nose, her brow area, her forehead and her eyebrows – which all got the top scores.
"Her lowest scores were for her chin and lips. Her lips are a little thin and ill-defined and her chin is less classical than some of the other women."
The technology deemed Queen Rania of Jordan as history's second most beautiful princess, giving her a score of 88.9 percent.
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Dr Silva said: "Queen Rania is the most beautiful living royal and a stunningly attractive woman.
"She had the highest marks of all for her classically shaped chin and also scored highly for her lips. She was marked down for her nose width and her brow area."
Another late princess who made the cut is Princess Grace of Monaco, aka Grace Kelly, who was deemed 88.8 percent beautiful by the golden ratio's standards.
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Dr Julian De Silva said: "Princess Grace has a timeless beauty and had the highest scores for her eye spacing and her eye position is almost perfect with a score of 99.8 percent. Her stunning lips also scored the highest.
"She lost marks for her chin which is a little indistinct."
In fourth place was another former actress, Meghan Markle, who the doctor said was 'closer than any other princess to having what the Greeks considered the perfect face'.
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The surgeon explained that she received a score of 87.7 percent thanks to her 'beautiful facial symmetry'.
Kate Middleton came in fifth place, according to the golden trio, but only received marginally smaller beauty rating than Meghan Markle's 87.7 percent, coming in at 86.82 percent.
He said: "Kate stands out for having a perfect gap between her nose and lips and very strong eye spacing.
"She was marked down for having a weaker chin and jawline than Diana."