Meghan teamed her coat with a stylish hat by Stephen Jones.
Meghan will appear alongside the Queen at Westminster Abbey in the first "public acknowledgement" by the Queen of the U.S. actress.
Meghan's new bling is definitely a nod to her recent baptism, which reportedly took place at St. James' Palace in London, and was attended by Meghan's future father-in-law, Prince Charles, and Camilla, the Duchess of Cornwall.
In her message, the Queen praised the "Commonwealth connection" which makes diversity "a cause for celebration".
Having Meghan at the event was a break in royal protocol for the Queen, but it's not the first time she has made an exception for the former Suits star to join them prior to her nuptials to Harry.
But the Duke of Edinburgh, who has effectively retired from public duties, will not be attending.
Google Might Rebrand Android Wear to 'Wear OS'
Thankfully, Google appears to be planning a complete rebrand for Android Wear to breath new life into it. This wouldn't be the first time that we've seen Google rebrand products.
The Commonwealth Service is the largest inter-faith gathering in the United Kingdom and is now being televised on the BBC. In addition to the Queen, nearly all of the core members of the Windsor family, including Prince Harry, Prince William, Kate Middleton, Prince Charles, Camilla Parker Bowles, Sophie, the Countess of Wessex and more, were in attendance.
Cheryl's partner Liam Payne performed at the service, while Dr Andrew Bastawrous, an eye surgeon who has helped combat blindness in developing counties, gave a reflection.
"He is proud and looks forward to it".
The couple's official beer has been named Harry and Meghan's "Windsor knot", and it's an adorable twist on the beer that was designed for Prince William and Kate Middleton's wedding.
Other guests include Commonwealth secretary-general Baroness Scotland, chef Ainsley Harriott, religious representatives and 800 schoolchildren and young people.
The theme for this year's service is Towards a Common Future, emphasising how the Commonwealth can address global challenges and work to create a better future for all citizens through the sub-themes of sustainability, safety, prosperity and fairness.