All About Lily Collins' Custom Wedding Dress and Bridal Accessories

Nearly one year after announcing their engagement, Lily Collins and filmmaker Charlie McDowell "officially became each other's forever" in Dunton Hot Springs, Colo.

"I've never wanted to be someone's someone more than I do yours, and now I get to be your wife. On September 4th, 2021 we officially became each other's forever. I love you beyond @charliemcdowell…⁣" 

Collins — the daughter of singer Phil Collins and his second wife Jill Tavelman — wrote in the caption alongside a photo of the pair kissing on their wedding day. She tagged Ralph Lauren, who designed her dress and veil.

Her husband, the son of actress Mary Steenburgen and actor Malcolm McDowell, shared the same sweet pictures on his Instagram, writing, "I married the most generous, thoughtful, and beautiful person I've ever known. I love you @lilyjcollins."

In September 2020, the Emily in Paris actress announced her engagement to McDowell on Instagram, posting several photos of the two together and a close-up of her unique ring: a rose-cut diamond with a bezel setting and thin gold ban

For more on Lily Collins and Charlie McDowell's wedding news and other top stories, listen below to our daily podcast PEOPLE Every Day.

"I've been waiting my lifetime for you and I can't wait to spend our lifetime together..." Collins captioned the series of photos, snapped during and after the intimate proposal, set against a stunning outdoor backdrop.

Collins and McDowell first sparked dating rumors in July 2019 when they were spotted on an outing together in Los Angeles, according to Metro UK.

One month later, the To the Bone actress made the relationship Instagram official when she shared a few snaps of the two in Paris.

"Always got your back…" Collins wrote alongside a photo of herself with her head leaning on McDowell.

McDowell's directing credits include episodes of the Kirsten Dunst-starring Showtime series On Becoming a God in Central Florida, as well as Legion, Dear White People and Silicon Valley. 

The director was previously romantically linked to Game of Thrones' Emilia Clarke and Girl with the Dragon Tattoo star Rooney Mara.

In February 2019, Collins and To All the Boys I've Loved Before star Noah Centineo ignited relationship rumors after being photographed at the Vanity Fair Oscars Party. However, sources confirmed to PEOPLE at the time that the two, who share the same manager, are just friends.

Lily Collins’ wedding dress

The bride wore Ralph Lauren!

The Windfall actress walked down the aisle in a long-sleeved embroidered high-neck gown and lace veil designed by the celebrated American fashion house.

Featuring a keyhole back, One Fab Day reported that the dress was made with French Calais-Caudry lace and covered in flowers beaded with Swarovski crystals and silk organza petals.

Lily Collins’ caped veil

She shared several photos from the big day on Instagram with her new husband wearing the hooded, caped veil that matched her lace dress (which gave us shades of her costume from 2012's Mirror, Mirror!) and removed it for the ceremony.

Lily Collins’ bridal hair

Collins wore her hair in a low, sleek bun woven with a gold embellishment. She had a delicate braid detail at the crown of her head.

Los Angeles hairstylist Gregory Russell revealed he was responsible for the elegant updo on Instagram. Collins has frequently appeared on Russell's social media, and he attended her wedding to McDowell.

Lily Collins’ engagement ring

At the time of Collins and McDowell's engagement, a representative for designer Irene Neuwirth confirmed the ring was a "one-of-a-kind rose-cut diamond" set in a thin yellow gold band. 

Neuwirth thanked McDowell on Instagram for trusting her with the task and called Collins the "perfect muse."

Unfortunately, both Collins' engagement ring and her wedding band were stolen in May 2023 from a secured locker at the spa of the Edition Hotel on Sunset Boulevard in West Hollywood.