The six-year-old collared the 7-1 favourite Flymetothestars close home to pick up Europe's richest handicap after going close in many big staying races in the past, including the Chester Cup in 2016.
Jardine is in no hurry to firm up plans for Nakeeta, although he does have entries in the Group Three Loughbrown Stakes at Naas on September 24 and the Betfred Cesarewitch at Newmarket on October 14 while the Melbourne Cup has also been mentioned.
"He's come out of the race fine. He's having a quiet day of rest - well deserved too," said the Dumfries handler.
"It was very good and I'm absolutely thrilled, happy days.
"I don't know where he'll go next, we'll see."