The winning dress for Fashions on the Field had an unexpected edge against all the others.

Among a sea of designer frocks, it was a homemade dress that won Fashions on the Field on Melbourne Cup Day.

Olivia Moor, 26, from Auckland, wore a stunning red gown, made by her mother. She will now go on to compete in the final on Oaks Day.

Moor is no stranger to race day fashion, having entered Fashions on the Field competitions since 2007. Her 27-year-old sister Charlotte is also a regular competitor.

The ensemble was a stand out, with the stunning frock complemented by red accessories. Moor’s tartan fascinator was particularly unique.

Olivia Moor at the Melbourne Cup. Image via Getty.

For her original look, the jewellery designer won a $2500 Myer shopping spree, a four night stay at the Sofitel Melbourne and, of course, tickets to Oaks Day.

If she wins on Thursday, Moor will will take home an $83,000 Lexus, a $2,298 television, a $6,000 shopping spree, $1,600 worth of luggage, and a trophy.

Not bad for a dress made by her mum.

Take a look at Tuesday's Melbourne Cup style.