Diamondsandrubies

Diamondsandrubies made her first and only appearance as a two-year-old in a maiden race over seven furlongs on good to firm ground at Leopardstown Racecourse on 13 September. Starting a 22/1 outsider she made steady progress without ever looking likely to win and came home sixth of the thirteen runners, just over nine lengths behind the winner Tamadhor.[6]

On her three-year-old debut Diamondsandrubies started the 6/1 third choice in the betting for a nine furlong maiden on soft ground at Tipperary Racecourse on 9 April. With Heffernan in the saddle she raced in third place before taking the lead a furlong out and drew away to win by two and quarter lengths from the favourite Chinese Light with a gap of more than seven lengths back to Mohini in third.[7] Nine days later the filly was moved up in class and distance for the Listed Salsabil Stakes over ten furlongs at Naas Racecourse and was made the 5/2 joint-favourite alongside the Jessica Harrington-trained Bocca Baciata. After being hampered two furlongs from the finish she kept on well in the closing stages to take third place behind Bocca Baciata and Pleascach. Ryan Moore took the mount when Diamondsandrubies was sent to England on 6 May to contest the Cheshire Oaks over eleven and a half furlongs at Chester Racecourse. Starting the 5/4 against nine British-trained opponents she tracked the front-running Sweet Dream before accelerating into the lead a furlong out and pulling clear to win by six lengths from the John Gosden-trained Entertainment.[8] Ryan Moore commented "When I asked her, she quickened like a smart filly. For a big filly, she's gone round there very easily."[9]

On 5 June Diamondsandrubies of the eleven fillies to contest the 237th running of the Oaks Stakes over one and a half miles at Epsom Racecourse. She appeared to be closing on the leaders when she was badly hampered a furlong out and although she rallied "gamely" in the closing stages to finish fourth behind Qualify, Legatissimo and Lady of Dubai.[10] Twenty-three days later the filly was dropped back to ten furlongs and was matched against older fillies and mare in the Group 1 Pretty Polly Stakes at the Curragh. Legatissimo started favourite ahead of Pleascach while the other six runners included Brooch (Lanwades Stud Stakes), Ribbons (Prix Jean Romanet) and Secret Gesture (Middleton Stakes). Starting at odds of 8/1 Diamondsandrubies was sent into the lead by Heffernan after a furlong and was never headed thereafter. She was strongly challenged by Legatissimo in the final strides but held on under pressure to win by a short head with Ribbons a neck away in third.[11] Heffernan commented: "Sometimes Epsom finishes a horse and sometimes the good horses thrive on it. She's obviously good. We thought she'd stay and I jumped and she landed in front and I was happy enough to go along with it. I knew they were coming. I knew where the line was. I was a bit unlucky at Epsom. Aidan trains them to progress from run to run and today she was at her best, so hopefully there will be more improvement."[12]

Diamondsandrubies was made second favourite for the Nassau Stakes at Goodwood Racecourse but never looked like winning and finished last of the nine runners behind Legatissimo. The filly was sent to France in autumn for two races at Longchamp Racecourse but had no success. In the Prix Vermeille in September she came home eighth behind Treve beaten more than seventeen lengths by the winner. Three weeks later she ended her track career by running unplaced behind Covert Love in the Prix de l'Opéra.