David O’Meara’s grey, who disappointed badly last time out in the Lockinge Stakes, was winning at the highest level for the first time in his career.
His fortunes could not have contrasted more with last year’s winner Accidental Agent, who refused to come out of the stalls.
The popular Laurens made a bold bid for home and hit the front two furlongs out, but she could never put much daylight between her pursuers.
William Haggas’ One Master came swooping through, showing the pace that won her the Prix de la Foret last season, and certainly hit the front, before her run she faltered inside the final 100 yards.
That left Beat The Bank, another who ran poorly in the Lockinge, and Lord Glitters (14-1) to fight it out, with Danny Tudhope managing to get his grey head in front by a neck.
Tudhope told Sky Sports Racing: "He's a very talented horse - things just need to fall right for him.
"Three years in a row now I've had a Royal Ascot winner and hopefully there's more to come.
"This is where you want to be - riding all the big winners.
"I've been with David for a lot of years, we've had some big winners and he's stuck by me through thick and thin."
O'Meara told ITV Racing: "He always runs well here - he loves the track.
"In the Lockinge he ended up with no cover and over-raced. I thought today Danny gave him the perfect ride and there was never a moment I thought he was in trouble.
"He had a bit of a programme last year and we'll follow a similar route this year."