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Zoë Kravitz (in Alexander Wang) celebrated the launch of her limited-edition collaboration with Swarovski Crystallized last night on the roof of New York’s Gramercy Park Hotel. The 23-year-old actress was joined by mom Lisa Bonet, and the two partied ’til the early morning hours in celebration of the sparkling nine-piece jewelry line, which incorporates earthy elements in addition to Swarovski’s trademark crystals. Kravitz’s birthstones, turquoise and tanzanite, are featured prominently in the bracelets, earrings, rings, and necklaces, which were modeled by the two ladies at the event. Shop the collection in Swarovski stores in April.

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Designers and celebrities walked a green carpet at Christie’s Auction House in New York last night to take part in a Runway to Green fashion show. The event featured looks from 29 designers, including Prada, Balenciaga, Marc Jacobs and Alexander McQueen. Pieces from the show are currently available on Net-a-Porter.com, and at least 10 percent of the sales from each item in the Runway to Green Collection will benefit the Alliance for Climate Protection, the Natural Resource Defense Council and the United Nations Environmental Program’s Billion Tree Campaign. Click through to see what Diane Kruger, Nicki Minaj, and more celebs wore to last night’s gala, and see all the styles from the event’s eco-friendly fashion show.

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