Diamond Necklace (2023)
About
Diamond Necklace is a 2yo bay colt trained by A P O'brien. He is by St Mark's Basilica out of the mare Prudenzia and has recorded three wins so far. His biggest achievement came on 5 October 2025 at Longchamp in Paris, where he captured the $399,998 Qatar Prix Marcel Boussac – Criterium des Pouliches, a Group 1 race for fillies. The horse has proved lucrative for bettors; wagering on him throughout his career would have generated a 353% return on investment.
Race Record
| Event Summary | Runner Stats | Rank |
|---|---|---|
| ParisLongchamp 05-Oct-25 1599m SOFT R1 Qatar Prix Marcel Boussac-Criterium des Pouliches (Fillies' Group 1) $251,999 (of $399,998) Barrier 3, Winning Time: 01:41.310, SP: 2.10 | C Soumillon 55.8kg | 1 (8) |
| Leopardstown 13-Sep-25 1408m SOFT R1 CL1 $60,000 (of $99,999) Barrier 4, Winning Time: 01:28.240, SP: 1.50 | C Soumillon 58.1kg | 1 (8) |
| Curragh 09-Aug-25 1408m GOOD R3 Grand Hotel Malahide Irish European Breeders Fund Fillies Juvenile Race $19,200 (of $32,000) Barrier 5, Winning Time: 01:22.620, SP: 10.00 | W Lordan 55.8kg | 1 (10) |