On social media, there was plenty of discussion as to whether the Duchess was sending a very pointed message to her critics with the design of her dress. She accessorized the look with a black clutch by the same designer and black high heels.
A palace source says Meghan's balcony position "would have come from her".
The Queen and the Duchess were even spotted whispering into one another's ears and giggling during the day's events.
Following this, it is considered rude to present the Queen with your back, and most people will walk backwards away from her. Meghan did turn her back on the monarch when entering the vehicle, but avoided doing so again.
"Thanks to a series of tiny loopholes in Canadian law, it's technically possible that Canada could immediately crown Prince Harry and Meghan Markle as king and queen of Canada", according to the country's National Post newspaper.
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Trump lashed out anew at the investigation on Thursday in a pair of tweets . Bloomberg News first reported the details of the inspector general report.
Today also marks the anniversary of the Grenfell Tower fire, which claimed the lives of 72 people, and Markle and the Queen took part in the minute's silence to remember and pay respects to the victims.
The pair then headed to officially opening the Storyhouse theatre - a library, theatre, cinema, restaurant, bar, community centre and arts hub.
Inside they watched as children performed for them. That's because Markle was simply taking her proper place in the royal hierarchy.
A few months before the wedding, the royal couple announced they'd be delaying their honeymoon to fulfill their royal duties, reports People.
It was a flawless introduction for the former American actress to a royal engagement Queen-style and to a British summer's day: it was cool and breezy with lots of cloud - Californian sunshine this was not.