Horse · Filly

Diamond Necklace

by St Mark's Basilica out of Prudenzia (Dansili)Poule d'Essai des Pouliches 2026 · Prix de Diane 2026

Classic wins

2

Trainer

Aidan O'Brien

Owner

Coolmore

Breeder

Ecurie Des Monceaux & Skymarc Farm Inc

Classic wins 2

YearHorseRaceTrainerJockeyOwnerTime

2026Diamond Necklaceby St Mark's Basilica out of PrudenziaPoule d'Essai des PoulichesAidan O'BrienRyan MooreCoolmore1:40.73

2026Diamond Necklaceby St Mark's Basilica out of PrudenziaPrix de DianeAidan O'BrienRyan MooreCoolmore2:03.78

Same dam Prudenzia

YearHorseRaceTrainerJockeyOwnerTime

2013Chicquitaby Montjeu out of PrudenziaIrish OaksAlain de Royer-DupréJohnny MurtaghPaul Makin2:35.01

More classic winners by St Mark's Basilica All 3 wins

YearHorseRaceTrainerJockeyOwnerTime

2026Venetian Princeby St Mark's Basilica out of Arabian QueenDerby ItalianoAndrew BaldingJason WatsonJ C Smith2:16.30

Aidan O'Brien: classic winners around 2026 Trainer profile

YearHorseRaceTrainerJockeyOwnerTime

2026True Loveby No Nay Never out of Alluringly1,000 GuineasAidan O'BrienWayne LordanCoolmore1:35.14

2026Christmas Dayby Camelot out of BeaulyThe DerbyAidan O'BrienRonan WhelanCoolmore2:43.75

2026Preciseby Starspangledbanner out of Way To My HeartIrish 1,000 GuineasAidan O'BrienWayne LordanCoolmore1:36.98

2026Gstaadby Starspangledbanner out of Mosa MineIrish 2,000 GuineasAidan O'BrienRyan MooreCoolmore1:35.69

2026Benvenuto Celliniby Frankel out of NewspaperofrecordIrish DerbyAidan O'BrienRyan MooreCoolmore2:28.33

2026Scandinaviaby Justify out of FabulousIrish St. LegerAidan O'BrienRyan MooreCoolmore2:58.18

2026Constitution Riverby Wootton Bassett out of ChuppyPrix du Jockey ClubAidan O'BrienRyan MooreCoolmore2:03.52

2025Lambournby Australia out of Gossamer WingsThe DerbyAidan O'BrienWayne LordanCoolmore2:38.50