However, the 28-year-old newlywed did take one beauty cue from her cousin-in-law. Well, actually, they both really took it from the Queen.
According to Vogue, Princess Eugenie walked the aisle last Friday wearing a nail polish colour called ‘Ballet Slippers’ by the brand Essie – the same shade the Duchess of Sussex’s nails were painted on her big day in May.
The shade, described by Essie as a "classic pale pink polish is graced with a subtle, sheer finish" is also a favourite of Queen Elizabeth's.
In fact, it's the only nail polish the monarch has used since 1989, when her hairdresser reportedly requested a bottle for the Queen from the brand's founder, Essie Weingarten.