India, Feb. 19 -- Congratulations are in order for Winnie Harlow and Kyle Kuzma! The supermodel got engaged to the NBA star in a super romantic setting on a private plane over Valentine's Day weekend. The Milwaukee Bucks forward popped the question with a sparkly 8.5-carat oval-cut diamond engagement ring, which he spent three months designing himself.

The newly-engaged couple took to social media Tuesday to share the news. Their joint Instagram post featured a carousel of photos showing the sweet moment. In one of the slides, Harlow can be seen flaunting her diamond sparkler, posing with her hand on her face. Another photo shows the Canadian model kissing her fiance.

Kuzma reflected on his proposal to Harlow in an interview with Vogue ...