She kept her look simple, teaming the smart ensemble with towering stilettos and carrying a small black clutch.
For the event, Meghan pulled her hair back into her signature low bun.
This is the second time in the past week that the style icon has shown her savvy for suiting!
But it was in stark contrast to the £327 Judith and Charles tuxedo dress, which showed off her toned legs to the max. Do you think she'll get used to it eventually?
After a week of bipartisan tribute, McCain is laid to rest
The United States bid a tearful adieu to Arizona Senator, John McCain , who was also a Navy veteran, in a memorial on Saturday . Naval Academy in Annapolis, Maryland , for a private funeral and burial at the cemetery there.
Both the Duke and Duchess of Sussex shared a special moment with Matilda Booth, who has spina bifida and is paralysed from the chest down, while attending the WellChild Awards ceremony on Tuesday night.
Each year we see the royal engaged in lively conversation with children facing serious illnesses and their families, who have been honoured for their courage.
The duke's dangling tie was tugged by the seven-year-old, who was born with a genetic disorder.
The couple has enjoyed a relaxing August away from royal duties, spending quality time at their country home in the Cotswolds and even jetting off to Lake Como to hang with A-list pals George and Amal Clooney.
Taken in December 2016 (a few months after she began dating Prince Harry), Meghan spent the Christmas holidays staying in LA with her close friend Benita Litt, her husband Darren Litt and their two daughters Rylan Litt, 7, and Remi Litt, 6, (yes, if only they had a son named Louis).