Trelawney Stud have recorded six winners this month, three of which have carried the Cambridge-based farm's silks to victory.
Last week homebred gelding Pareanui Bay impressed with his debut win, while Cheaperthandivorce resumed in winning style at Hastings.
On Wednesday Juan Diva added to the tally when second up this preparation at Rosehill.
The Michael and Richard Freedman-trained mare set the pace in the 1200m contest and on reaching the straight, responded to jockey Tim Clark's urgings and raced away from her rivals to win by 2.52L.
Juan Diva is the first foal of her dam, the Listed Ipswich Turf Club Gai Waterhouse Classic winner Peron.
The Taylors purchased the well-bred daughter of Snitzel after she failed to meet her reserve of $700,000 at the 2018 Inglis Easter Yearling Sale.