Tiffany & Co. hosted its annual Blue Book gala at the Park Avenue Armory in New York City, transforming the venue into an indoor garden for high jewelry unveilings. Celebrities including Rosé, Teyana Taylor, Greta Lee and others attended the black-tie event, which featured a surprise performance by Mariah Carey. The evening celebrated the brand's latest collection inspired by nature and historical designs.
The gala took place Thursday evening at the historic Park Avenue Armory on Manhattan's Upper East Side. The space, with interiors designed by Louis Comfort Tiffany in 1881, was adorned with boxwood shrubs, foxgloves, delphinium and foliage to evoke Bunny Mellon's gardens. Guests dined on French-inspired fare by Daniel Boulud, including tartelette carotte, filet de boeuf and Charlotte strawberry cake, paired with Dom Pérignon, at a table set for over 200 under a leaf-wrapped trellis. The greenery will be donated to the New York Restoration Project afterward, Tiffany & Co. said. Rosé told Vogue it was her first time at the event. Fresh from Coachella, where she watched acts like Sabrina Carpenter, Justin Bieber and The Strokes, she visited Tiffany's Fifth Avenue store beforehand to try pieces. For the gala, she wore a white lace top and ballgown skirt from Khaite’s fall 2026 collection, paired with a 2026 Blue Book necklace of platinum, 18-karat yellow gold, 6.18 karats of pink sapphires and diamonds, plus matching ring and earrings. “The pink sapphires are insanely gorgeous—what a privilege it is that we got to wear them,” Rosé said. Other attendees included Teyana Taylor in Calvin Klein, Greta Lee in Marc Jacobs with a Bird on a Rock necklace, Rosie Huntington-Whiteley in The New Arrivals and Lauren Santo Domingo in vintage Dior. Just after 10:30 p.m., Mariah Carey performed Y2K hits and new songs on a stage amid the plants. The Blue Book collection draws from Jean Schlumberger’s floral designs, as overseen by Tiffany’s chief artistic officer Nathalie Verdeille.
