Diamond Necklace Racehorse Profile
Diamond Necklace is a 3-year-old Filly, trained by A P O'BRIEN, based at Goodwood. With 5 career starts and 5 wins, it has earned $1,036,920.
- Age
- 3
- Sex
- Filly
- Trainer
- A P O'BRIEN
- Trained at
- Goodwood
- Sire
- St Mark's Basilica
- Dam
- Prudenzia
- Sire of dam
- Dansili
- Career
- 5:5-0-0
- Prize money
- $1,036,920
- Last start
- 30 July 2026
- Recent form
- 111-11
Diamond Necklace Form Guide
Diamond Necklace — last 5 starts
| Date | Track | Dist | Class | Going | Bar | Wgt | Jockey | Result | Margin | Time | SP | Winner / 2nd |
|---|
| 14 June 2026 | Chantilly (fr) | — | Prix de Diane Longines (Fillies) (Turf) | Good To Firm | 3 | 126kg | Ryan Moore | 1 of 11 | — | 2:3.78 | — | Diamond Necklace (IRE) |
| 10 May 2026 | Longchamp (fr) | — | Emirates Poule d'Essai Des Pouliches (Fillies) (Turf) | Heavy | 3 | 126kg | Ryan Moore | 1 of 15 | — | 1:40.73 | — | Diamond Necklace (IRE) |
| 5 Oct 2025 | Longchamp (fr) | — | Qatar Prix Marcel Boussac - Criterium des Pouliches (2yo Fillies) (Grande Course) (Turf) | Very Soft | 3 | 123kg | Christophe Soumillon | 1 of 8 | — | 1:41.31 | — | Diamond Necklace (IRE) |
| 13 Sept 2025 | Leopardstown | 1408m | Ballylinch Stud Irish EBF Ingabelle Stakes (Fillies' Listed) | Good To Yielding | 4 | 128kg | Christophe Soumillon | 1 of 8 | — | 1:28.24 | — | Diamond Necklace (IRE) |
| 9 Aug 2025 | Curragh | 1408m | Grand Hotel Malahide Irish European Breeders Fund Fillies Juvenile Race | Good | 5 | 123kg | Wayne Lordan | 1 of 10 | — | 1:22.62 | — | Diamond Necklace (IRE) |
Record by Condition
Starts, record (wins-seconds-thirds) and strike rate by condition
| Condition | Starts | Record | Win % | Place % |
|---|
| Good | 2 | 2-0-0 | 100% | 100% |
| First-up | 2 | 2-0-0 | 100% | 100% |
| Second-up | 2 | 2-0-0 | 100% | 100% |
Record by Track
Performance at each track raced
| Track | Runs | Wins | Places | Win % | Place % |
|---|
| Curragh | 1 | 0 | 0 | 0% | 0% |
| Goodwood | 1 | 1 | 1 | 100% | 100% |
Record by Jockey
Performance with each jockey ridden
| Jockey | Runs | Wins | Places | Win % | Place % |
|---|
| Ryan Moore | 1 | 1 | 1 | 100% | 100% |
Career Wins
Races won
| Date | Race | Event | Dist | Jockey |
|---|
| 30 July 2026 | R4 | Qatar Nassau Stakes (Group 1) | 2011m | Ryan Moore |