Aidan O'Brien's Diamond Necklace has added another prestigious win to her resume, claiming the Prix de Diane Longines at Chantilly. This victory marks a significant achievement, as it is her seventh win out of nine Classics this season. The filly's performance was particularly impressive, as she was sent off at 4/9 odds and justified the strong support. Unbeaten in three starts as a juvenile, Diamond Necklace demonstrated her versatility by taking the step up to 10 furlongs in her stride, readily denying 50/1 outsider Pink Panthera and 20/1 shot Inis Mor. The race was a testament to her class and determination, as she settled in a share of fifth, racing on the outside of regular rival Green Spirit. Her stablemate, Moments Of Joy, made the running under Wayne Lordan, while Oisin Murphy made a positive move with Inis Mor at the top of the straight, ultimately securing second place. Diamond Necklace's victory was a result of her exceptional racing brain and will to win, as she held off the challenge of Pink Panthera, who attempted to pass the whole field. The winning distances were a neck and two lengths, and the time was just one hundredth of a second outside the race record set by Treve. Diamond Necklace's success is even more remarkable considering she is only the fifth horse to win the Prix Marcel Boussac at two and both Classics at three, joining illustrious names such as Allez France, Divine Proportions, Zarkava, and Blue Rose Cen. O'Brien's commentary highlights the filly's similarity to her father, St Mark's Basilica, and her potential to avoid extended distances. Ryan Moore, the jockey, praised Diamond Necklace's racing brain and will to win, stating that she has a great racing brain and put her head down, showing a great will to win. Moore's emotional reaction to the win further emphasizes the significance of the achievement. In contrast, Inis Mor, who finished second in the Guineas at Newmarket and won the Height of Fashion Stakes at Goodwood, was left disappointed, finishing twelfth on the day. The rest of the action featured Remmooz, who claimed Group 3 honors in the Prix Bertrand du Breuil Longines, and Tiffany, who finished second in the listed Prix Pawneese Longines Presente Par RMC. O'Brien's success with Diamond Necklace is a testament to his exceptional training skills and the potential of his horses, as he continues to dominate the racing world.
