Go Inside “the ”Most A-List Dinner of the Year to See J.Lo, Oprah, Gwyneth and More Doing Quiet Luxury Right

Italian designer Brunello Cucinelli held an intimate, star-studded dinner at the Chateau Marmont on Oct. 19, and what felt like the entire A-list was in attendance

The stars were out and shining brighter than ever at a glamorous Brunello Cucinelli event held Oct. 19 in Los Angeles.

The Italian fashion designer, along with his family, invited some A-list guests for an evening of cocktails, mingling and an intimate dinner. The event, aptly titled "Una Serata Italiana" or "An Italian Evening," took place at the Chateau Marmont in L.A.

"It was a very special evening. Warm, easy and with a real family vibe," a source close to the brand told PEOPLE. "People came out because they love Brunello as a designer and person. They see what he does for his community and they feel a special connection to him and his work."

From Gwyneth Paltrow and Oprah Winfrey to Jon Hamm, see which A-listers were present and perfectly dressed at the sparkly soirée.

Star Sighting

Jennifer Lopez stunned in black and white while greeting Cucinelli. Her husband Ben Affleck was also there, looking "relaxed," a source told PEOPLE. "He seemed to be having fun. They both love the brand and shop there and know Brunello personally, and were happy to support him."

Terrific Trio

Gwyneth Paltrow and husband Brad Falchuk also mingled with Cucinelli.

Black Excellence

Quinta Brunson, Oprah Winfrey and Colman Domingo showed off their pearly whites while hanging out at the posh event.

Getting Comfortable

Patrick Dempsey looked oh-so-comfortable as he sat back on a patterned couch during the party.

Silver Foxing

A dapper Chris Pine posed with Cucinelli, who hosted the fabulous night.

Director in Charge

Ava DuVernay looked regal in her champagne-colored dress and matching shoes.

Doggie Days

Kathryn Hahn and Demi Moore smiled for the camera as the latter's pooch — named Pilaf — sat cozy in her pouch.

Make It a Date

It was date night for Jon Hamm and wife, Anna Osceola, who just tied the knot in June.

Yes, Chef!

Jeremy Allen White's bright blue eyes were on full display as he donned a navy suit.

Star in Stripes

James Marsden jazzed up the dress code with a pinstriped ensemble.

Golden Man

Also rocking pinstripes was Henry Golding, who opted for tailored gray suit for the evening.

Guest with the Most

Jay Ellis made for an engaged guest as he was pictured deep in conversation.

Simple Elegance

Mandy Moore attended the event decked in all-black.

Young Hollywood

Similarly dressed was Ava Phillippe, who showed off her killer abs.

Going Rogue

Ashley Park opted for a long, shimmering denim gown for the occasion.

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