She continues a terrific dynasty for the Antoniades family, who breed from Oak Tree Farm near Lewes, England.
Sent off the 4-5 favourite, Mango Diva looked in trouble but showed a sharp turn of foot once Ryan Moore started to drive and eventually won by two lengths.
"I will leave it to Michael to do the talking as to where she goes, but I'm very pleased to have a winner," said Tony Antoniades.
The Hot Snap camp of Cecil, Khalid Abdullah and Tom Queally were on the mark later on when 5-4 favourite Disclaimer defied an 11lb raise from a recent Doncaster success in the BetVictor Casino On Your Mobile Handicap. Disclaimer will surely fly higher now gelded.
Mango Diva looked much the smartest performer on the card but indications from the Paul Cole camp were that juvenile Meritocracy (15-8) would head to Royal Ascot after his dominant victory in the British Stallion Studs EBF Maiden Stakes.
Just over an hour later, his jockey Jamie Spencer doubled up at Lingfield.
William Buick picked up a useful ride for Mark Johnston to win on Storm Moon (11-10 favourite) in the BetVictor.com Handicap.
Arashi (8-1) was the lead performer in the Conor Maynard At Kempton 14.09.13 Handicap while Magma (12-1) won the Download The BetVictor App Now Jubilee Handicap.
Moore secured a double in the concluding BetVictor.com Fillies' Handicap, riding Roger Teal's 6-5 favourite Charlotte Rosina.