The Queen's choice for best turned out horse at a prestigious event at Ascot went on to win one of the races at the Berkshire venue.
Camilla praised Talk Of New York before the animal clinched the Queen Elizabeth II Stakes victory at the British Champions Day.
She was pictured smiling during the presentation ceremony as jockey William Buick received his trophy for the win.
Royal Encounters at the Races
The Queen hugged and chatted with the Princess Royal's daughter Zara Tindall and met jockeys on Saturday afternoon.
Her ex-husband Andrew Parker Bowles was also in the royal box.
Saffie Osborne, who last month became the first woman to ride the winner of a British Classic, said it was a "real honour" to meet the Queen.
"It's amazing to have her here," she said.
Jockeys and Young Riders
"It's quite clear how much she loves British racing and this is one of the best days' racing in the world so to have her support and for her to be here is a real honour for all of us."
"On a personal note, I think my granny will be over the moon that I've met her. She loves the royal family, as do we all."
Camilla also met 14-year-old Camilla Froggatt, the winner of the pony race.
Continued Racing Legacy
The King and Queen have taken on the late Queen's role as racing's most high-profile supporters.
They have continued to race the late Queen's stable of horses and have become enthusiastic and passionate horse owners.
