Formula One’s Charles Leclerc proposed to Alexandra Saint Mleux with a stunning diamond ring.

Leclerc, 28, and Saint Mleux, 24, announced their engagement via Instagram on Sunday, November 2. In the photos, the duo gave their dog Leo a kiss while Saint Mleux showed off her oval engagement ring.

According to Neil Dutta, the managing director at Angelic Diamonds, her ring is “estimated at five to six carats.”

“Alexandra’s engagement ring is a refined take on a classic design,” Dutta shared with Us Weekly in a press release statement. “The oval-cut diamond, estimated at five to six carats, sits on a platinum pavé band that adds discreet sparkle without overwhelming the centre stone.”

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Arnold Jerocki/WireImage Charles Leclerc isn’t driving in circles when it comes to his love life. The Formula 1 racing driver, 27, was first connected to his girlfriend, Alexandra Saint Mleux, in early 2023. Later that year, the two stepped out as a couple to attend the Wimbledon tennis tournament in London. Prior to Saint Mleux, […]

Dutta added, “It is elegant, modern and very wearable, the kind of piece that will look as current in twenty years as it does today. A ring of this size and quality would be valued at around $525,000.”

Saint Mleux styled her sparkler with a gold nail bracelet and delicate Chanel earrings. She wore a baby blue silk dress featuring a halter top and lace embellishments.

For glam, the model donned soft makeup, including mascara, bronzey eyeshadow, blushed cheeks and glossy lips. Her brunette hair was parted down the middle and styled in a blowout. Saint Mleux complemented her ring with a nude manicure.

The Ferrari driver, for his part, looked sharp in a black jacket and white shirt underneath. He wrapped his arm around his fiancée and gave the camera a soft smile. In another shot, the couple, who have been together since 2023, shared a kiss.

F1’s Charles Leclerc Proposes to Alexandra Saint Mleux With Massive Diamond Ring: Cost, Carats, MoreArturo Holmes/WireImage

Saint Mleux also shared a snap of where Leclerc got down on one knee. The racecar driver set up a path of roses that outlined a heart on the floor. To make the setting even more romantic, he lit candles and placed vases of more roses around the room.

After proposing, the duo celebrated with Leo, who wore a bowtie featuring a gold tag with “Dad wants to marry you!” engraved on it. They also enjoyed cookies in the shape of hearts and their initials.

“Mr². & Mrs. Leclerc 💍❤️❤️❤️,” Leclerc captioned the post. Their celebrity friends and fans congratulated them in the comments section.

“🥰🥰🥰,” Nina Dobrev wrote, while Charlie Puth added, “Congratulations to you both!! 🎶 🔔.” Sofia Richie Grainge commented, “I’m way too excited.”

Leclerc and Saint Mleux first met during Paris Fashion Week in March 2023. Later that year, they made their first public appearance at Wimbledon.

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Saint Mleux has supported Leclec at multiple F1 events. In October, she cheered him on at the Grand Prix of Mexico race.

For the race, she looked chic in a lace tiered top, which she paired with a matching skirt. Saint Mleux accessorized with a crossbody bag complete with a bedazzled heart clutch and black shades. She even took Leo to the race.

In June, they made their red carpet debut at the F1 world premiere in Times Square, New York City. For the event, Saint Mleux stunned in a sleek black dress. Leclerc contrasted her in a tan suit and white dress shirt.