Miley Cyrus and her longtime boyfriend Maxx Morando are taking the next step in their relationship.

After four years of dating, the couple recently got engaged, as confirmed by The New York Times .

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Cyrus, 33, showed off her engagement ring at the Los Angeles premiere of "Avatar: Fire and Ash" while posing on the red carpet with Morando, a 27-year-old music producer and drummer for the band Liily.

Jacquie Aiche designed the ring, TODAY.com can confirm.

The ring appears to feature a cushion-cut diamond between four and five carats, according to jewelry experts TODAY.com interviewed.

Laura Taylor, a jeweler specializing in engagement and wedding rings at Lorel Diamonds, says cushion-cut diamonds have a “romantic,

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