Diamond Necklace
St Mark’s Basilica × PrudenziaA filly unbeaten in her first six starts, Diamond Necklace combined two French Classic victories with the Nassau Stakes.
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Record and achievements
| # | Achievement and record |
|---|---|
| 1 | Poule d’Essai des Pouliches 2026 — Group 1. |
| 2 | Prix de Diane 2026 — Group 1. |
| 3 | Qatar Nassau Stakes 2026 — Group 1. |
This horse’s races
| Date | Race and description | Finish |
|---|---|---|
| Qatar Prix de l’Arc de Triomphe 2026 Distance 2400 mSurface Turf · goodWinning time 2:27.11 | Third place | |
Race replay and analysis Stall 16Race number 16 Christophe Soumillon compensated for the widest stall, 16, by steadily improving Diamond Necklace’s position. Daryz passed her around 300 metres from the finish, but she remained competitive and took third, a neck behind Bay City Roller. Her strongest feature: staying competitive despite the difficult draw. | ||
Parents
Pedigree
Lineage
Sire · St Mark’s Basilica
St Mark’s Basilica won six of nine races, including five Group 1s: the Dewhurst, French 2,000 Guineas, Prix du Jockey Club, Eclipse and Irish Champion Stakes. He was European champion two-year-old in 2020 and Cartier Horse of the Year in 2021.
Dam · Prudenzia
Prudenzia is by Dansili out of Platonic. She won twice, including the Listed Prix de la Seine, and produced Group 1 winners Chicquita and Magic Wand, as well as Diamond Necklace. Chicquita won the Irish Oaks and Magic Wand won the Mackinnon Stakes.