Jennifer Hawkins stepped out at the Doncaster Mile Luncheon at The Star in Sydney on Thursday, wearing a breathtaking $3million tiara.
Her 122-carat white diamond crown, which was designed specifically by jeweller Nic Cerrone for the luncheon and race day, is valued at the same amount as The Star Doncaster Mile prizemoney.
The Star ambassador paired the stunning piece with a white lace one-shoulder Toni Maticevski Spring 2018 top, Lillian Khallouf trousers, white strappy sandals and bvlgari jewellery.
Speaking to Today Extra ahead of the luncheon, Jennifer described her headpiece as "so magnificent."
She told the show's hosts: "I'm happy to have it on my head but it will be nice to take it off and look at it too!"
Also in attendance at the luncheon were engaged couple and The Bachelor originals, Anna Heinrich and Tim Robards.
Erin Holland and Emma Freedman also attended the event. Erin wore the Cooper St Dawn Drift Ruffle Dress dress ($189.95; cooperst.com.au) with a Gucci belt and Tony Bianco heels.
Singer George Maple was there to perform, and she wore a white hooded dress with a metallic belt, black sunglasses, black platform heels and a Balenciaga logo shawl.