• Prince Harry and Prince William did not give separate speeches at the unveiling of Princess Diana's statue Thursday
  • The brothers instead released a joint statement honoring their mother
  • Royal expert Robert Lacey said this was a "well-judged decision"

A royal expert said Prince Harry and Prince William putting on a united front at the unveiling of Princess Diana's statue rather than delivering separate speeches was the right move for the event.

Though there was initially speculation that the brothers would each give a speech for the occasion, the Duke of Cambridge and the Duke of Sussex issued a joint statement instead when they reunited at London's Kensington Palace Thursday to honor their late mother on what would have been her 60th birthday.

In an interview with People, royal historian Robert Lacey praised the princes' decision and said he feels delivering separate speeches would not have been a good idea.

"It was a very well-judged decision not to have speeches. The idea of rival speeches could have been disastrous, but to bring out a considered joint statement was perfect and shows a way ahead," said the royal author, who wrote about Prince Harry and Prince William's rift in his book "Battle of Brothers."

Prince William and Prince Harry issued their joint statement Thursday through the Duke and Duchess of Cambridge’s official Twitter account. They remembered their mother for her strength and character and thanked those who helped them to make the event possible.

"Today, on what would have been our Mother’s 60th birthday, we remember her love, strength and character – qualities that made her a force for good around the world, changing countless lives for the better," they wrote.

"Every day, we wish she were still with us, and our hope is that this statue will be seen forever as a symbol of her life and her legacy," they added. "Thank you to Ian Rank-Broadley, Pip Morrison and their teams for their outstanding work, to the friends and donors who helped make this happen, and to all those around the world who keep our mother’s memory alive."

Lacey also acknowledged how the brothers put aside their differences to pay tribute to their late mother, noting that their restraint "illustrates their public style, both on their own and individually."

"They demonstrated a constructive way of dealing with differences," he told People. "[They were] not sweeping [their differences] under the carpet but acknowledging more important things and doing that in a way that warmed everyone's heart."

Meanwhile, Princess Diana's friend and former voice coach Stewart Pearce also noted that Prince William and Prince Harry looked relaxed around each other during their latest reunion. The royal expert said he feels that the brothers' interactions during the statue unveiling "detonated the essence of peace."

"It dispels any of the brouhaha over the fact that there’s a rift," the royal author told Us Weekly. "I didn’t believe that there was a rift. There was a slight disagreement, but I mean, who doesn’t disagree with his brother? But [it’s] been blown out of complete proportion, it’s been overly dramatized. They both were so relaxed."

Despite this, Prince Harry appeared to have not spent more time with his older brother and family as he was spotted heading to the airport a day after the event.

The announcement reportedly caused acrimony between Prince Harry and his elder brother Prince William (r)
The announcement reportedly caused acrimony between Prince Harry and his elder brother Prince William (r) POOL / Tolga AKMEN