She was the Duchess of Sussex's closest aide in the palace.
The former actress, like the rest of the female members of the royal family up on the balcony, could only been seen from the waist up.
Meghan ultimately decided on a diamond and platinum bandeau tiara with Harry and the Queen, and called it "an incredibly surreal day".
Also, there are allegations that the Queen warned Harry about "difficult" Markle's attitude after a kerfuffle over what tiara she could wear on her wedding day.
It's a Royal Fab Four reunion! Meghan originally wanted to wear a tiara adorned with emeralds, but unfortunately it was nixed because no one had known where it had come from.
Meghan brushed her long dark hair to one side, displaying her dewy pregnant glow and glossy pout.
The Queen had arrived at the Royal Albert Hall wearing five poppies before the show started.More news: Pompeo to meet Kim aide over nuclearization
The Duchess of Cambridge opted for a military-style outfit, with silver buttons and a cream-collar for the sombre event.
The PM and her husband joined thousands of servicemen and women at the annual Festival of Remembrance, organised by the Royal British Legion and marking 100 years since the guns fell silent.
That said, if you've always wanted to meet Meghan Markle and Prince Harry/work for them, now might be an ideal time to send in your resume.
Markle, who is expecting her first child with the Duke of Sussex, covered her baby bump in a black Stella McCartney coat featuring a silk waist tie, as first reported by Entertainment Tonight. She paired the look with black pumps and the designer's "Falabella" clutch, keeping her hair loose and wavy by her shoulders and her complexion bronzed.
The said event marked a century since the First World War and commemorated all those who died in conflicts.
But the coat was actually one Meghan had worn before - she spotted wearing it when she visited Cardiff in Wales with Prince Harry back in January 2018.