Is that a rock on Miley's finger, or is she just happy to see us?

The "Flowers" singer, 31, set tongues wagging and diamonds flashing as she debuted a brand-new sparkler at the "Avatar: Fire And Ash" premiere on Monday night.

Posing lovingly with fiancé Maxx Morando, Miley gave the world a glimpse of what appears to be one seriously stunning engagement ring.

So, who's the mastermind behind this bling?

Well, Page Six Style can exclusively reveal that the ring is a custom creation by none other than celebrity-loved jeweler Jacquie Aiche.

A representative for the brand confirmed the exciting news. And get this – the ring is set in 14-karat gold. Fancy!

The Grammy winner made sure all eyes were on the prize, strategically placing her hand on her beau's chest, giving photographers an unobstructed view of the cushion-cut diamond.

Cyrus and Morando, 27, proved they're a match made in fashion heaven, rocking coordinating all-black ensembles for the premiere.

Miley stunned in a sequined strapless Gucci gown, complete with a dramatic ruffled train that screamed "red carpet royalty."

Morando, the drummer for the band Liily, looked equally dashing in a classic tuxedo.

Jacquie Aiche isn't just any jewelry designer. She's the go-to for A-listers looking for meaningful pieces.

Remember Selena Gomez's adorable "B" initial ring for Benny Blanco? Yep, that was Aiche's handiwork.

And who could forget Gigi Hadid's "Mama" necklace, debuted shortly after the arrival of her daughter, Khai? Aiche, again!

Miley herself is a longtime fan of Aiche's designs, frequently sporting her delicate body chains and dazzling diamond earrings.

She even chose Jacquie Aiche earrings for her wedding to ex-husband Liam Hemsworth back in December 2018.

Speaking of Liam, remember that whirlwind romance? The pair were on-again, off-again for a decade before calling it quits after less than a year of marriage.

Interestingly enough, Hemsworth announced his own engagement to model Gabriella Brooks in September 2025.

Could 2024 be the year of Miley's happily ever after? We’re certainly hoping so!

One thing's for sure: that ring is definitely saying "I'm here to stay."

Cheers to the happy couple! May their future be as bright as that cushion-cut sparkler.

And here's hoping we get a closer look at that ring soon!

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