In the new set of rules, whenever the Duchess of Cornwall or Duchess of Cambridge attend events without their husbands, they are expected to still curtsy to "Blood princesses" who are further down the line of hierarchy.
Meghan initially covered up the rings with a pair of leather gloves, which she then removed for the short carriage ride from the Horse Guards Parade to Buckingham Palace.
Britain's Queen Elizabeth, centre, and members of the royal family attend the annual Trooping the Colour Ceremony in London, Saturday, June 8, 2019.
Meghan Markle is sporting a blingy new ring - a diamond-rimmed bauble and likely gift from hubby Prince Harry. But there was one moment that didn't go unnoticed, when she was reunited with her nephew, Prince George. At the time, Prince Louis was only a three-week-old baby.
It's been tradition for the young Cambridge children to attend their first engagement at Trooping the Colour.
He was joined by Princess Charlotte and Prince George who looked on as the Red Arrows flew overhead.
Meghan hasn't been seen in public since Archie was born on May 6 and has been focusing on bonding with her bundle of joy in Windsor's Frogmore Cottage. While we got a glimpse of baby Archie soon after his birth, there are chances we could see more of the baby soon.
Speaking about working with Harry, 34, and Meghan, 37, he has said: "Every time Harry or Meghan would talk, one would look at the other and there would be this little sparkle, this little giggle, a little nudge of the elbow and it was so cute".
Markle was absent from events commemorating the 75th anniversary of the D-Day landings last week and from the U.S. State Visit Banquet at Buckingham Palace, held in honor of President Donald Trump.