Hilary Duff shows off massive diamond ring as she announces her engagement to Matthew Koma

Hilary Duff is an engaged woman!

The 31-year-old Younger star showed off a massive diamond ring as she announced her engagement to longtime love Matthew Koma on Thursday morning.

Duff flashed a wide smile as she displayed the gorgeous bauble before planting a kiss on her new fiance.

Yes! The 31-year-old Younger star showed off a massive diamond ring as she announced her engagement to longtime love Matthew Koma on Thursday morning

The Come Clean singer shared a series of selfies with Matthew as the pair celebrated their new titles on social media. 

‘He asked me to be his wife,’ she simply captioned the photo with a heart to follow.

‘I asked my best friend to marry me… @hilaryduff,’ Koma wrote in a matching display of love online. 

Another black-and-white image showed the pair embraced in a kiss, with Duff’s left hand prominently displayed.

Her new bauble ‘appears to be an approximately 5 carat cushion cut set in a classic solitaire style setting,’ which is valued at $200,000, according to The Diamond Pro. 

Happiness: Duff flashed a wide smile as she displayed the gorgeous bauble before planting a kiss on her new fiance

Loved up: Hilary and Matthew enjoyed a breakfast date after announcing their big news

She began dating Matthew in 2016 before they parted ways only to rekindle their romance in 2017.

Matthew and Hilary welcomed their first child together, a daughter named Banks Violet Bair, on Oct. 25. 

She shares co-parenting responsibilities of her seven-year-old son Luca with ex-husband Mike Comrie. 

The 31-year-old musician is known for working and writing with a host of highly acclaimed artists, and recently formed a new band, Winnetka Bowling League. 

Baby on board! Little Banks enjoyed the background music as her parents waited for food at their favorite breakfast spot

Proud parents: Matthew and Hilary welcomed their first child together, a daughter named Banks Violet Bair, on Oct. 25; seen on Friday

Family! She shares co-parenting responsibilities of her seven-year-old son Luca with ex-husband Mike Comrie

After a few minor roles in the late ’90s, Duff became a household name after landing the lead in Disney Channel’s Lizzie McGuire in 2001. 

Leading off the success of the television show with books, dolls and video games, The Lizzie McGuire movie made it to the silver screen in 2003, the same year she worked alongside Frankie Muniz in Agent Cody Banks and also released her second studio album.

Her incredible career also includes philanthropy work, a trilogy of successful novels and design work which includes a collaborative eyewear line.

Hustle: After a few minor roles in the late ’90s, Duff became a household name after landing the lead in Disney Channel’s Lizzie McGuire in 2001; seen at the Tribeca Film Festival