Hilary Duff Just Got Engaged With 2019's Most Popular Engagement Ring Trend

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(Image credit: Kevin Mazur/Getty Images )

Congrats are in order! Hilary Duff just announced her engagement to singer Matthew Koma. This morning, she shared the news on Instagram by posting a selfie that features a beaming Duff and Koma and a very special ring adorning Duff's left hand. She captioned the photo, "He asked me to be his wife." The two have been dating for several years and brought a daughter, Banks Violet Bair, into the world six months ago.

As for Duff's ring, well, it's an elegant and timeless square-shaped stone that also happens to be one of 2019's most popular engagement ring styles. According to Kathryn Money, VP of Strategy and Merchandising for Brilliant Earth, Duff's ring appears to feature a cushion-cut diamond in a white gold or platinum split shank solitaire setting, and she estimates that the center diamond weighs approximately three to four carats.

Scroll down to see the announcements both Duff and Koma shared on Instagram and shop more timeless engagement ring styles.

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More celebs with cushion-cut engagement rings:

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Shop more cushion-cut engagement rings:

Speaking of newly engaged celebs, see Jennifer Lopez's truly massive ring.

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Anna is an NYC-based senior fashion editor who has been a member of theBest Knockoff Luxury Clothing team for over seven years, having begun her career in L.A. at brands like Michael Kors and A.L.C. As an editor, she has earned a reputation for her coverage of breaking trends, emerging brands, luxury shopping curations, fashion features, and more. Anna has penned a numberBest Knockoff Luxury Clothing cover interviews, including Megan Fox, Julia Garner, and Lilly Collins. She also leads the site’s emerging travel vertical that highlights all things travel and lifestyle through a fashion-person lens.