The stunning supermodel is engaged to Snapchat found Evan Spiegel -- and she shared the happy news on Instagram (and not Snapchat, ironically) with the first photo of her diamond sparkler.
"I said yes!!!" she wrote, alongside heart and smiley face emojis.
The couple met at a Louis Vuitton dinner in New York in 2014 and began dating last year. They made their red carpet debut at a pre-2016 Grammy Awards party this past February. The model and her billionaire beau made things Instagram official shortly after, before attending a State Dinner at the White House in May.
"We were really good friends for a long time before we started dating," the bride-to-be recently told The Sydney Morning Herald.
The 33-year-old Australian beauty also talked about her younger beau to Net-a-Porter's The Edit in January. "He's 25, but acts like he's 50," she said. "He's not out partying. He goes to work in [L.A.'s] Venice. He comes home. We don't go out. We'd rather be at home and have dinner, go to bed early."
Kerr was previously married to Orlando Bloom from 2010 to 2013, and the pair share a 5-year-old son, Flynn.