The 1000 Guineas is next for Tuesday's Group III Nell Gwynn Stakes (7 fur) winner Nathra however in which country is still to be decided.
The daughter of Haunui Stud shuttle stallion Iffraaj relished the uphill climb of the final furlong on the Rowley Mile course and came away to defeat Squash by 1 1/2-lengths with Robanne a further three-quarters of a length away third.
Nathra has only been beaten once in four starts when runner-up to the Aidan O'Brien-trained Minding in the Group I Fillies Mile last year and trainer John Gosden told the Sporting Life he may decide to avoid tackling that filly again at Newmarket in two weeks time.
"She travelled into the race well and we're very happy," Gosden said. "She's done nothing but stay and it pays a huge compliment to Minding.
"This filly is engaged at Newmarket and Deauville and we'll leave those options open."
Nathra is the 37th stakes winner for the 15yo Iffraaj who shuttles between Dalham Hall Stud in Newmarket and New Zealand.
She is the fourth stakes winner and one of six stakes performers from 17 foals Iffraaj has out of mares by Danehill including Group I winners Turn Me Loose and Chriselliam as well as Group II winner Fix.