The TOWIE star shone at the Lipsy 'Glam' perfume launch at the Cumberland Hotel on Thursday evening (29 August) in a gorgeous black bodycon dress teamed with a lace jacket and simple nude heels.
Love the look as much as we do? Good news! Jess' dress is available from Lipsy for £65.
It's no surprise Jess wore a Lipsy dress for the occasion: after all, it was a party to celebrate 90210 actress Jessica Lowndes' new fragrance campaign for the fashion brand.
Jessica also has her own collection for Lipsy, With Love Jessica, filled with sexy gowns and cute dresses for all occasions.
The fashion designer and singer - who recently unveiled her new music video for song 'Come With Me' - has been busy lately bringing her With Love Jessica brand to shopping malls by way of pop up stores.
Jess spent a week at the huge Westfield Stratford in London earlier this month, where she held a star-studded launch party and wowed in a collection of dresses from her own range.
Alongside dresses (and the chance to meet Jess herself), fans could also get their hands on her latest venture, Fruity Tans, a self tanning range promising not to smell bad.
Then this week, the star was joined by boyfriend Ricky Rayment in Sheffield for another successful pop up shop event.
Watch Jess' new music video for 'Come With Me' below: