Katie Holmes And Jessica Biel Dazzle In Diamonds At Tiffany Event

Published on April 21, 2014. Updated October 15, 2014

Stars took to the red carpet to celebrate Tiffany & Co. — complete with millions of dollars of diamonds.

Held at the Guggenheim Museum in New York, the 2014 Tiffany & Co. Blue Book Celebration honored the jewelry maker’s Blue Book Collection. Jessica Biel, Kate Bosworth and Katie Holmes were all on hand to celebrate the sparkling pieces, serving as human canvases for the sparkling necklaces, earrings and bracelets.

Braving the cold weather, Jessica wore a gorgeous black Oscar de la Renta velvet halter gown with a sliver necklace that punctuated her dress’s plunging neckline, along with a romantic updo. Meanwhile, the very tall Katie Holmes wowed in a black and white mini dress, sporting a Tiffany & Co. bracelet and rings. Katie kept it simple on purpose; “I think highlight your favorite items. So if you’re wearing beautiful Tiffany’s jewelry go with a simple dress,” she explained. Both actresses wore pointy black heels.

Kate Bosworth added some color and old-Hollywood glamour to the scene with a dramatic blush pink gown by Katie Ermilio gown. For jewels, Kate rocked a Tiffany & Co. necklace and earrings along with a diamond bracelet and a mirrored clutch.

All the actresses discussed what Tiffany & Co. jewelry has meant to them. Check out the video to see their thoughts — and their gorgeous outfits!