The Duke and Duchess Of Sussex Attend 'Your Commonwealth' Youth Challenge Reception at Marlborough House on July 05, 2018 in London, England.

Prince Harry, Duke of Sussex makes a speech, watched by Meghan, Duchess of Sussex during the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Prince Harry was equally animated as he listened to members' ideas  on the type of Commonwealth they want to see

A laughing Meghan, Duchess of Sussex was in high spirits as she chatted with Jacob Thomas (left), a 28-year-old activist from Melbourne, Australia, who supports the LGBT community

The Duchess of Sussex wowed in a £1,300 canary yellow sheath dress by designer Brandon Maxwell who has worked as Lady Gaga's stylist since 2012. She opted for a bun hairstyle and teamed her dress with a pair of nude heels, as she joins her husband at a Commonwealth youth reception in London

Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex arrived at a performance from a calypso band including a steel pan player and a dancing duo

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

The couple Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex appeared fascinated as they listened to the ideas of members from across the Commonwealth

Meghan, Duchess of Sussex flashed her famous engagement ring as she enjoyed an animated discussion as her husband Prince Harry, Duke of Sussex looks on.

As the sun went down the couple Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex looked especially cozy as they shared a private moment together in the courtyard

 Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Meghan, Duchess of Sussex mingled with members of the forum members who shared their ideas on the type of Commonwealth they want to see

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex who vowed to continue her campaigning for gender equality, attend the Your Commonwealth Youth Challenge reception 2018 at Marlborough House in London, England.

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Prince Harry, Duke of Sussex could be seen giving his speech a once-over before he took to the stage outside Marlborough house as his wife Meghan, Duchess of Sussex applauds after his speech.

Meghan, Duchess of Sussex dazzles in a bright yellow dress by designer Brandon Maxwell, as she joins Prince Harry, Duke of Sussex who looked dapper in a navy blue suit complete with an olive green tie, at a Commonwealth youth reception in London

Meghan, Duchess of Sussex looked incredible in a statement yellow dress, featuring a fitted sheath design, midi length and a subtle boat-neck cut by designer Brandon Maxwell, teamed with a pair of nude heels, and opted for a bun hairstyle, as she stepped out to the Commonwealth youth reception with her husband Prince Harry (not pictured).

Meghan, Duchess of Sussex wowed in a Brandon Maxwell canary yellow sheath dress joins her husband Prince Harry, who looked his dapper best in a navy blue suit complete with an olive green tie, at a Commonwealth youth reception in London

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex arrived at the reception at Marlborough House hand in hand, accompanied by Commonwealth secretary-general Baroness Scotland (R)

The couple Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex appeared in good spirits as they addressed guests ahead of tonight's reception at Marlborough House on July 05, 2018 in London, England.

The newly married couple Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex put on a very tactile display on Thursday evening as Meghan reached to touch Prince Harry's arm during the Commonwealth youth reception in London

Affectionate Meghan, Duchess of Sussex could be seen reaching out to greet a guest, giving his arm a rub as they were introduced in the courtyard as she joins Prince Harry, Duke of Sussex (C) at a Commonwealth youth reception in London

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex received a warm welcome from Patricia Scotland (R) during the Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Meghan, Duchess of Sussex meets guests during the Your Commonwealth Youth Challenge reception 2018 at Marlborough House in London, England. Jacob Thomas (left) said of Meghan: 'The Duchess has had a very longstanding commitment to working for gender equality and she made it clear that will continue'

The couple Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex could be seen applauding a group of musicians who played on the lawn of the house as they arrived, accompanied by Commonwealth secretary-general Baroness Scotland (2nd-R)

Prince Harry with Meghan Markle, who stepped out in Altuzarra’s Audrey button-detailed ottoman midi dress, a striped, sleeveless white midi dress with buttons down the front. She topped off the look by wearing a chic black blazer from Australian brand Camilla and Marc draped over her shoulders. She carried a striped crossbody bag from the Australian-based brand Oroton, teamed with a pair of sky-high black Mary Jane heels from British shoe designer Tamara Mellon, at a Commonwealth reception in London in April 2018

Britain's Prince Harry (R) and his US fiancee Meghan Markle, who wore a black printed belted midi dress from Hugo Boss Spring 2018, styled with a  pale pink clutch and beige suede pumps, as they arrive to attend a memorial service at St Martin-in-the-Fields in Trafalgar Square in London, on April 23, 2018, to commemorate the 25th anniversary of the murder of Stephen Lawrence.

Prince Harry and Meghan Markle speak with delegates from the Commonwealth Youth Forum at the Queen Elizabeth II Conference Centre, during the Commonwealth Heads of Government Meeting on April 18, 2018, in London, UK 

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Meghan, Duchess of Sussex dazzles in a Brandon Maxwell bright yellow sheath dress as she joins Prince Harry, Duke of Sussex at a Commonwealth youth reception in London

Meghan, Duchess of Sussex popped in a bright yellow dress by designer Brandon Maxwell, opted for a bun hairstyle and teamed her dress with a pair of nude heels at the reception at Marlborough House in London

Meghan, Duchess of Sussex meets guests during the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex accompanied by Commonwealth secretary-general Baroness Scotland (R) attend the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex met with young leaders from the Commonwealth at Marlborough House

Meghan, Duchess of Sussex in a canary yellow sheath dress by designer Brandon Maxwell, as she joins Prince Harry, Duke of Sussex who looked dapper in a navy blue suit complete with an olive green tie, at a Commonwealth youth reception in London

Prince Harry, Duke of Sussex makes a speech during the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.

(L-R) Meghan, Duchess of Sussex accompanied by Commonwealth secretary-general Baroness Scotland arrives to attend the Your Commonwealth Youth Challenge reception at Marlborough House on July 05, 2018 in London, England.