Gaia Repossi, poster child for the newest generation of the Place Vendôme-based French jewelry company, made some major inroads in New York this season. A few weeks ago, her own collaborations with Alexander Wang and Joseph Altuzarra debuted on the designers' respective runways. To celebrate, she decided to host a dinner last night for her NYC-based friends at the quintessentially Parisian brasserie Café de Flore. Joining her were all sorts of transatlantic guests, including Leigh Lezark, Dree Hemingway, Jessica Stam, and the three Traina sisters.

Repossi, ensconced in a corner for most of the evening, contrasted the working styles of two of New York's favorite new faces. "With Joseph [Altuzarra] it was very easy. We discussed what we wanted back in September, and gradually it happened until his show," she explained. "But Alex [Wang] was much more fast-paced. Up until three days before the show, we were still discussing the motif and the feel of the show. We tried Skype-ing, but that didn't work so well." Perhaps not, but her burnt-gold cuffs were still standouts on his runway.

With everyone at their seats and jewelry talk wrapped up, the conversation moved on to the very late-arriving dinner courses. The invite said 8 p.m., but the first course didn't hit the tables till nearly 11. Erin Wasson was jealously eyeing the cut-up croque monsieur that was given to Asia Zahm, Olivier Zahm's daughter. "You know, that's all you need: cheese and carbs," Wasson concluded. "That will get you through fashion week." Perhaps a hunger tizzy was to blame, but before the end of the night there was a full-on flower fight, using the centerpieces as ammunition, between tables—Trish Goff, Wasson, and Lindsay Lohan on one side, and Vladimir Restoin-Roitfeld, Giovanna Battaglia, and the Traina sisters on the other. "This is not very French," Julia Restoin-Roitfeld, who remained neutral in the floral fray, explained. "But I'm sure they're amused."

— Derek Blasberg