Diamond Necklace dazzled under Christophe Soumillon to take the Qatar Prix Marcel Boussac at ParisLongchamp for trainer Aidan O’Brien.
The unbeaten two-year-old, who is by St Mark’s Basilica, was the 11-10 favourite in a field of nine as she aimed to maintain her flawless record when stepped up to Group One level.
Under a patient ride she did so with little fuss, travelling in mid-division until the home turn before mounting a challenge and quickly taking up the lead to triumph comfortably from Green Spirit.
More to follow...