Always travelling well for Darryll Holland, the David Loder-trained three- year-old tracked the leaders as Frankie Dettori cut out the running on Rabi.
Dettori quickened the pace two furlongs out but Holland had the move covered and produced the 5-4 favourite to challenge approaching the distance. It was here that Diktat quickly asserted and, despite running about once in front, drew clear to score by one and a half lengths from Rabi with Sagitta 2,000 Guineas sixth Duck Row three lengths back in third.
Ricky Bowman, representing Loder, said: "He's done it well. I was pleased with him. He's gone about his business very well and could be Ascot-bound now with the Jersey and St James's Palace his options."Reuse content