Riley Keough [Getty]
It looks like Elvis Presley's granddaughter Riley Keough is engaged to her stuntman boyfriend Ben Smith-Peterson. Although their reps haven't confirmed the engagement, Ben posted a picture on Facebook of Riley with an impressive diamond on her ring finger with the caption "so that happened." Check out the ring by clicking right here.
According to Just Jared, Riley and Ben met on the set of Mad Max: Fury Road in 2012. She was previously engaged to actor Alex Pettyfer who she starred alongside in Magic Mike.
In case you don't quite know Riley Keough, let us introduce you. She graced the cover of US Vogue when she was just FIFTEEN and made her runway debut for Dolce & Gabbana. Hollywood is in her DNA as her mum is Lisa Marie Presley and Michael Jackson was her step father. She is now good pals with Kristen Stewart - who she starred alongside in The Runaways - and is a regular feature on Cara Delevingne's Instagram feed.
Riley Keough and Ben Smith-Peterson [Getty]
We're using this as the perfect excuse to look at some other celebrity diamonds. So who wins the award for the most blinding, ostentatious celebrity engagement ring ever? Well Jennifer Aniston's diamond is anything but discrete and who could forget JLo's pink dazzler she was given Ben Affleck back in 2002. Beyonce must have a mighty strong index finger to carry the weight of her 18 carat blinder.
The most ridiculous ring in terms of cost per wear goes (of course) to Kim Kardashian. Kris Humphries proposed to her with a Lorraine Schwartz diamond ring which was 20.5 carats in total. It was estimated at two million dollars - which is nearly $30,000 for each day of their 72 day marriage.
See celebrity engagement rings in the gallery below...