Glorious Goodwood

Glorious Goodwood 2026: ‘Proper racing machine’ Diamond Necklace sparkles in Nassau Stakes

Unbeaten filly Diamond Necklace maintained her perfect record with an impressive victory in the Qatar Nassau Stakes, enhancing her reputation as one of Flat racing’s brightest stars.

by
The Racing Ahead Team
30 July 2026

Diamond Necklace was in a league of her own in the Nassau

Diamond Necklace lived up to her billing when extending her unbeaten record with a dominant display in the Qatar Nassau Stakes at the 2026 Glorious Goodwood Festival.

Having rounded off a perfect juvenile campaign with victory in the Prix Marcel Boussac on Arc weekend at ParisLongchamp, Aidan O’Brien’s filly has returned this year to secure back-to-back Classic wins in France.

She landed both the French 1000 Guineas and the French Oaks.

Diamond Necklace was the 4-6 favourite to make it six from six as she faced her elders for the first time.

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Ryan Moore looks admiringly at Diamond Necklace.
(Andrew Matthews/PA)

Improving

While Friendly Soul did her best to shake her off, Ryan Moore always looked ultra-confident in the saddle aboard Diamond Necklace.

She pulled two and three-quarter lengths clear with the minimum of fuss.

An impressed Moore said: “That’s the best she’s felt, she’s improving with her racing. Aidan said she was up in her weight a bit today so she’s obviously thriving.

“She’s classy, it was very easy really. She travelled smoothly and quickened up well, she’s a little bit idle in front still, but she’s a proper racing machine.

“She gives you a classy feel, every time I’ve ridden her she’s travelled with loads of pace, loads of enthusiasm and she has a turn of foot; that’s what her father (St Mark’s Basilica) had, a real good turn of foot and that’s what’s evident with her.”

The daughter of St Mark’s Basilica delighted O’Brien by enhancing her unbeaten record.

He said: “She’s lovely and she’s progressing and she was heavier today, but Rachel (Richardson, work rider) was confident that was just strength she was building rather than just being heavy and it was the way she went through the line.”

Quality

He continued: “There’s a lot of people around her who help her and she’s a lovely filly.

“This was a mile and a quarter against older fillies and we didn’t know what was going to happen. We put in a lot of pace as we didn’t want a Mickey Mouse race and she has options now.

“You can see her quality the way she travels through a race and Ryan was hoping they would lead him longer and he just had to go on as her stride was getting broken.

“She is a great cruiser and she has a lot of quality and is progressing great so I’m over the moon.”

Diamond Necklace’s Prix de l’Arc de Triomphe odds shortened from 14-1 to 8-1, but O’Brien is yet to commit to stretching her stamina beyond 10 furlongs, with the star filly holding a multitude of options later in the season.

Fine race

He added: “Constitution River is the boss and everyone has to fall into line behind him. At the moment he is going to York and we’re looking forward to that.

“She could stay at a mile and a quarter and go to the race at Leopardstown (Irish Champion Stakes), or France for an Arc trial, she has all those races open to her and she does handle soft ground as well as she handles fast ground.

“The Arc is possibility and she could be a Breeders’ Cup filly, it will depend how far we ask her to go.

“Her next run will tell us where she is going to go and she has a long stride on her and loves nice ground and a fast track, she has a lot of options.”

Friendly Soul has endured her fair share of drama since returning from injury this year, being the horse who put a foot in a hole at Haydock before a luckless run in the Duke of Cambridge Stakes at Royal Ascot.

“She’s run a fine race against a top class three-year-old who is unbeaten,” Thady Gosden said of the five-year-old he trains alongside his father, John.

“It was a very good effort and we will now in consultation with George and Julia (Strawbridge, owners) look at the programme ahead in which there are some good opportunities for older fillies.”