Nadia Bartel, Simone Holtznagel and Indy Clinton pose up a storm at the star-studded Effie Kats AW25 dinner

This was not your everyday dinner.

Some of Australia's biggest names were out at Sydney's Buon Ricordo restaurant on Thursday for a glamorous night of food and fashion at the Effie Kats' AW25 dinner event.

The evening spotlighted the latest from eponymous Melbourne-based label, Effie Kats, while bringing together a plethora of Aussie stars across fashion, TV and more.

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Many of the stars were decked out in black and maroon from the designer brand's new collection for the event. Read on to see all the incredible looks we can't get enough of.

Nadia Bartel

Aussie influencer and fashion designer Nadia Bartel stunned for the occasion in a dark floor-length gown with a twist: the sleeves were sheer, unlike the rest of the gown.

Bartel, who has her own fashion label Henne, wore her hair out in loose curls.

When she turned around, the star had an amazing reveal.

Her dress was backless!

The gown cut bared her back just below the waistline.

Bartel appears to be wearing the Effie Kats Monaco Gown in the shade chocolate, which retails for $489.

Anna Heinrich

After several Australian Fashion Week appearances this year, Anna Heinrich was once again out celebrating the best of local fashion at the star-studded dinner event.

The reality TV alum wowed in a cutout dress that appeared to be the Faith Dress in the colour black cherry, which retails on the Effie Kats website for $379.

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Heinrich paired her gown with a 'wet' hairstyle and bangles stacked on one arm.

"Hours of work on my hair or three seconds in the rain?" she joked on Instagram.

During the event, Heinrich posted behind-the-scenes pics to her Instagram Story.

The star shared this selfie she took at her table with make-up artist Jade Kisnorbo and Aussie model Simone Holtznagel.

Kate Waterhouse

Model and journalist Kate Waterhouse, who is the daughter of Gai and Robbie Waterhouse, wowed in a sleeveless gown from the Aussie designer.

The star appeared to be wearing the Haven Dress from Effie Kats' new collection in the same black cherry shade as Heinrich's. The dress retails for $379.

Waterhouse wore her hair up to spotlight the gown's gorgeous scarf detail.

Havana Brown

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Opera gloves are a go-to for many stars at lavish events. The staple accessory made an appearance on one star at the Sydney dinner – but with a twist.

Aussie DJ Havana Brown, whose real name is Angelique Frances Meunier, wore a pair of opera gloves to go with halter dress. But instead of being silky or even velvet as the more traditional fabric choices, these ones were leather.

Indy Clinton

Social media star Indy Clinton bared her midriff in a black Effie Kats top and skirt.

Clinton kept it simple in the accessories department with a bit of bling.

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The star later revealed one part of her evening wasn't quite as glamorous.

"I just drove past and there's a photographer outside and I'm walking in with this umbrella," the star said in a video posted to her Instagram Story.

In the clip, Clinton carried a kids umbrella while in full glam and walking in the rain.

"I have no choice but to just commit and just blame it on my children."

Effie Kats

It's the woman of the hour herself, Effie Kats!

The Melbourne-based designer stunned for her big night in a chocolate brown gown.

Kats launched her fashion label in 2018.

Simone Holtznagel

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Aussie model Simone Holtznagel looked glamorous in a strappy black dress with her hair slicked back in a ponytail to show off a pair of statement earrings.

The star's dress appears to be the $419 Greer Gown from Effie Kats in black.

Sarah Abo

Nine's very own Today host Sarah Abo suited up for the occasion.

Abo was all smiles as she posed at the event wearing a buttoned dress shirt and jacket.

Elle Ferguson

Eleffect and Felle founder Elle Ferguson stunned in a mini dress for the dinner.

To finish off the look, Ferguson wore a pair of pointed toe heels.

Sarah Ellen

When she turned, Aussie actor Sarah Ellen revealed a daring detail to her look.

The star was exposed on one side while the other side of the dress had a full sleeve.

Rozalia Russian

Aussie fashion influencer Rozalia Russian looked elegant in a strapless black gown.

The star had her fashion styled up in a slicked back bun for the night.

For her accessories, Russian carried a matching black purse that formed a heart with the mirroring handle shape.

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