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Diamond Necklace Prix de l'Arc de Triomphe 2026 Odds

conrad-castleton
Editor
Last updated: Wed 30 Sep 2026 11:28
Diamond Necklace, trained by Aidan O'Brien, is set to spearhead his stable's bid at the 2026 Prix de l'Arc de Triomphe. The filly boasts an impressive record, including wins in French Classics and a commanding performance at Goodwood. Despite a recent defeat at Deauville, confidence remains high as she steps up in distance under top jockey Ryan Moore. Preparations are focused on leveraging her form for victory, with odds currently at 8/1. The field and draw will be confirmed Thursday, adding further anticipation for this marquee race.
conrad-castleton
Conrad Castleton 1 hour ago
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  • Latest betting odds for Diamond Necklace in the 2026 Prix de l'Arc de Triomphe
  • Aidan O'Brien's filly is 8/1 to win at Longchamp
  • Back Diamond Necklace for the Prix de l'Arc de Triomphe here on our website
Diamond Necklace Prix de l'Arc de Triomphe 2026 Odds
Ryan Moore riding Diamond Necklace win The Qatar Nassau Stakes at Goodwood. (Getty)

Diamond Necklace will lead Aidan O'Brien's challenge in the 2026 Prix de l'Arc de Triomphe.

O'Brien's filly won all three of her juvenile starts, including the Qatar Prix Marcel Boussac on Arc Day 12 months ago. Diamond Necklace then kicked off her three-year-old campaign by landing two French Classics, winning comfortably in both the Poule d'Essai Des Pouliches and the Prix de Diane.

After a commanding victory over Friendly Soul in the Nassau Stakes at Goodwood, Diamond Necklace suffered the first defeat of her career in the Prix Jean et Louis Romanet at Deauville. Ryan Moore's mount was beaten at 2/5 by Aventure, but connections are keen to put that defeat behind her and step their star filly up in distance.

Diamond Necklace will be ridden by Ryan Moore and will wear the blue and orange silks of owners Michael Tabor, Derek Smith, Mrs John Magnier and Westerberg. We'll update this article on Thursday when the field has been confirmed and the draw has been announced.

Bet on DIAMOND NECKLACE for the 2026 Prix de l'Arc de Triomphe at 8/1 with Star Sports – back him here and also get the best Arc betting offers...

Note: Odds are subject to change.

Verdict

Back Diamond Necklace to win the 2026 Prix de l'Arc de Triomphe at 8/1.

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