The reality show star, 32, looked like a green goddess when she arrived at Birmingham's NEC in a simple but elegant dress that showed off her famous figure - swit swoo!
With her blonde hair full of bounce, TOWIE's Gem showed off one of her own designs - the Monte Carlo dress which costs £60.
Gemma is one of many designers promoting their fashion ranges at the event and, before getting to work, she tweeted: "Big girls you are beautiful come see how to rock your curves today at my stand at the clothes show today."
The former car salesperson recently won the award for Best Designer at the British Plus-Size Awards, and it's not difficult to see why.
Her party dresses are available to buy from www.gemmacollinsofficial.com, with sizes ranging from 16-24.
Gemma is currently dating Rami Hawash after they recently rekindled their romance.
She'll be back on our screens looking fabulous in the Christmas episode of the reality show, The Only Way Is Essexmas.
What do you think of Gemma's green frock? Tell us below!