Fashion’s Night Out takes place nationwide Thursday, Sept. 6, and merchants everywhere are planning their own unique fetes. Here are three swanky soirees to visit at jewelers in the city.

Efva Attling New York: Swedish jewelry designer Efva Attling and design and branding superstar Marc Balet invite guests to celebrate the new book ANTONIO: Fashion Art Sex & Disco at the Efva Attling New York Boutique (36 Little West 12th Street) from 7 p.m. to 9 p.m.  

Image courtesy Henri Bendel on Facebook: Sneak Peek at the Costumes

Swarovski Elements & Henri Bendel: Crystal maker Swarovski Elements is partnering with the New York City–based merchant for the third year in a row to turn its Fifth Avenue store into a Cirque du Soleil–esque casino and circus. Zumanity performers in Swarovski-encrusted costumes made by Thierry Mugler are just part of the appeal, while shoppers with a $50 or more purchase receive a one-of-a-kind Henri Bendel striped iPhone case that can be customized by Swarovski Elements’ application specialists. Also available for purchase: Swarovski Elements-accented, limited-edition FNO t-shirts and artisanal food truck meals from Urban Lobster Shack and more, as well as drinks from Mulberry Project mixologists and signed, limited-edition Bendel girl prints from illustrator Izak Zenou. Smartwater samples are free of charge. Festivities take place from 5 p.m. to 11 p.m.

Swarovski & 52Grams: Swarovski is partnering with 52Grams—a new mobile-friendly platform that allows brands to curate fully shoppable look books from user-generated Instagram images—to host a digital street style competition. Encouraging users to submit pictures of themselves in their Fashion’s Night Out finest via Instagram with the hashtag #SwarovskiFNO, Swarovski and a panel of fashion industry judges will crown winners in several categories including Best Arm Party and Best Fashion Statement. Winners receive a piece from Swarovski’s fall jewelry collection along with a $500 Swarovski gift card. In-store submissions may be made at Swarovski’s Madison and Fifth Avenue boutiques from 6 p.m. to 11 p.m.

JCK