Iris Law dropped jaws on Thursday when she attended the Bvlgari Magnifica Gala dinner at Spencer House in St James' London wearing a stunning cut-out gown. Embellished with green stones and falling just below the model's ankles, Iris, 21, teamed her backless dress with a breathtaking diamond Bvlgari snake necklace and matching earrings. Wearing her hair loose and adorning her eyes with stick-on jewels, Iris - who added height to her frame in open-toe heels - was joined at the event by the likes of James Middleton, Bulgari UK Managing Director Joyce Weng and designer Sabine Getty. Wow: Iris Law, 21, dropped jaws on Thursday when she attended the Bvlgari Magnifica Gala dinner at Spencer House in St James' London wearing a stunning cut-out gown Ballet dancer Francesca Hayward also made an appearance, looking sensational in a figure-hugging black gown, as did actor Josh O'Connor, 31, who arrived wearing a smart black suit layered over a white shirt adorned with bow detailing. James, 34, arrived at the event with his fiancée Alizee Thevenet and looked dapper in a deep blue velvet jacket with gold brass buttons. Alizee stunned in a peach maxi dress with a trendy dragon print and plunging neckline. Sabine, 36, looked beautiful in a one-shoulder pink gown, while Joyce opted for a high-neck, nude-hued dress. Stunning: Embellished with green stones and falling just below the model's ankles, Iris teamed her backless dress with a breathtaking diamond Bvlgari snake necklace and matching earrings Standing tall: Wearing her glossy hair loose and adorning her eyes with stick-on jewels, Iris added height to her frame in open-toe heels Striking: Facing away from the camera while posing for photos, Iris revealed that her gown was backless Pedicure: Iris stepped out on Thursday rocking a green pedicure in keeping with her brightly coloured gown Guests: Iris was joined at the event by the likes of James Middleton, Bulgari UK Managing Director Joyce Weng (pictured with Iris) and jewellery designer Sabine Getty Good night? She was seen beaming as she departed bash Stunner! She was flashing her winning smile as she partied It comes after Iris - who is the daughter of Sadie Frost and Jude Law - enjoyed an impressive breakfast spread at a luxury hotel with her boyfriend Jyrrel Roberts, 24. Iris shared sweet snaps of their romantic morning on Instagram in May as the couple relaxed following an action-packed day at the F1 Monaco Grand Prix. Their romance was first revealed in 2018, with sources saying: 'The family likes him, which is important to her. They're a sweet couple and she's really happy.' Iris previously discussed growing up with famous parents and how she is managing with her newly found fame in an interview with ES Magazine last year. Smart: Actor Josh O'Connor, 31, arrived wearing a smart black suit layered over a white shirt adorned with bow detailing All in the details: The Crown star teamed his suit with polished black loafers and was also wearing a luxury watch on his right wrist Dapper: James Middleton looked dapper when he stepped out on Thursday with his fiancée Alizee Thevenet wearing a deep blue velvet jacket with gold brass buttons Bold: Alizee stunned in a peach maxi dress with a trendy dragon print and plunging neckline High spirits: James and Alizee appeared in high spirits on Thursday and beamed while posing for photographers Pretty in pink: Sabine, 36, looked beautiful in a one-shoulder pink gown and teamed the bright piece with black heels High fashion: Sabine and Joyce offered a lesson in luxury dressing while posing together at the event in their gorgeous gowns Beautiful: Ballet dancer Francesca Hayward also made an appearance, looking sensational in a figure-hugging black gown She said her parents, who divorced following six years of marriage in 2003, had given her normality in her childhood despite their A-list status. 'My dad was really young,' she said. 'He'd had all his kids [with Frost] by 30. Mum, too. She also had a baby face. I can never tell [her age] in pictures, I'll say, ''What, you had three kids by that age?'' She looks 17.' Recalling her own memories, she said: 'My parents weren't rock 'n' roll when I was growing up, they were just my parents.' Cute couple: Iris and boyfriend Jyrrel Roberts gave fans a glimpse at some more intimate moments on their trip to watch the Monaco Grand Prix in May Chilling: Iris took to Instagram last month to share a shirtless pic of her model beau, 24, who was relaxing in bed with a cup of tea All rights reserved for this news site (dailymail) and under his responsibility