05/03/2016 10:13 EDT

Kate Upton Debuts Engagement Ring At 2016 Met Gala

Sorry, gents: Kate Upton is officially off the market.

The 23-year-old model is engaged to her long-term boyfriend, Detroit Tigers pitcher Justin Verlander. She debuted her diamond engagement ring, which Verlander designed, while attending the 2016 Met Gala on Monday evening.

kate upton

kate upton

The diamond sparkler was a nice addition to the former Sports Illustrated Swimsuit cover girl's custom Topshop gown. The golden dress, paired with those retro waves, oozed Old Hollywood glamour.

kate upton

kate upton

Of the engagement, Upton told E! News, "I'm really excited, he asked me right before season started so we've been keeping it on the down low for quite a while. So I'm excited to finally be able to share it with the world!"

kate upton justin

Kate Upton and Justin Verlander attend the Atlanta Hawks vs New York Knicks game at Madison Square Garden on Oct. 29, 2015.

However, the Vogue cover girl and her 33-year-old beau aren't in a rush to walk down the aisle.

"We are enjoying the engagement period," she told E!.

Congrats to the happy couple!

For more images from the 2016 Met Gala, check out the gallery below:

Met Gala 2016