It's true what they say: diamonds are a girl's best friend!

Additional reporting by Andrea Saadan.

Shailene Woodley has revealed that she's engaged to American football star Aaron Rodgers, and in fact, she says they've been engage "for a while" now. The actress, who starred in The Fault in Our Stars, confirmed the news on the latest episode of The Tonight Show with Jimmy Fallon.

"It’s kind of funny. Everybody right now is freaking out over it and we’re like, 'Yeah, we’ve been engaged for a while,'" she said. Fans got a quick look at her massive ring when she raised her hands for a few seconds during her appearance on The Tonight Show.

But her engagement ring isn't the only one that got everyone talking. From Paris Hilton to Ariana Grande, we list a few of our favourite engagement rings below.

(Related: 5 Engagement Ring Trends To Know For 2021)

1 / 5

Shailene Woodley

Shailene Woodley's recent engagement announcement on The Tonight Show With Jimmy Fallon came as a surprise to many of her fans, but in truth, she says she and fiancé Aaron Rodgers had already been engaged "for a while". In a video, the Fault In Our Stars actress can be seen wearing a show-stopping engagement ring that one expert speculates to be "four- to five-carat, solitaire, round-cut diamond set in platinum", costing close to USD100,000. 

2 / 5

Paris Hilton

Paris Hilton has always been a style icon, so it's no surprise that her engagement ring from fiancé Carter Reum is one that's as stylish as she is. Designed by the great-great-grandson of French jeweller Louis Cartier, this 10 to 20-carat emerald-cut Jean Dousset ring is estimated to cost around US$1 million. 

(Related: Paris Hilton is Engaged at 40: What We Know About Her Massive Diamond Ring)

3 / 5

Ariana Grande

Ariana Grande's engagement to Dalton Gomez last December 2020 was a happy announcement from the young couple. Not surprisingly, Grande's engagement ring was big news for fans as well. The singer's oval-cut diamond, which is set on a unique east-west axis on a platinum band, made headlines for its unique design and sweet touch that fans speculate may be a tribute to her grandfather. Next to the diamond, people can clearly see a beautiful pearl nestled on the same band; some speculate this detail might be from Grande's grandfather's tie pin, which Grande's grandmother had made into a ring for her already before. 

(Related: Ariana Grande is Engaged: All You Need to Know About Her Diamond Engagement Ring)

4 / 5

Maria Sharapova

Tennis star, Maria Sharapova, and businessman, Alexander Gilkes, are engaged! They announced the happy news just before Christmas and fans couldn't be happier. Sharapova's ring, which was designed by Jessica McCormack, is a five-carat emerald cut diamond set on a rose gold band. It is estimated to cost around USD400,000. 

(Related: A Look Back on Maria Sharapova's Colourful Tennis Career)

5 / 5

Lana del Rey

December 2020 was a big month for Lana del Rey as the musician got engaged to Clayton Johnson. The two had reportedly met on a dating app and have been together since. Similar to Woodley, fans first noticed the singer's ring on a performance at The Tonight Show With Jimmy Fallon. An expert has also weighed in on the unconventional piece of jewellery, which seems to be a two-carat princess-cut centre gem set on wide, overlapping bands. It could have cost anywhere from USD30,000 to USD45,000.