Former Miss Universe and model Olivia Culpo turned to Instagram last Friday to show off her gorgeous oval-shaped diamond engagement ring from San Francisco 49ers star running back Christian McCaffrey.

In a beautifully shot series of B&W photos taken during their Utah desert holiday in early April, we can see the athlete going down on one knee with a ring box in hand as his girlfriend presses her palms together in front of her face in surprise.

In the the final frame of the carousel, her 5.3 million followers got a good look at Culpo's oval center stone framed by two five-sided epaulette-shaped accent diamonds. (The shape is a mashup of a triangle and a trapezoid, typically seen on the shoulder patches of military personnel.) The precious stones are set in platinum and mounted on a delicate yellow gold band.

Culpo, 30, captioned the photos with the couple's engagement date — 4.2.23. She bracketed the date with grey infinity symbols.

Celebrity jewelers have estimated the weight of the oval center stone at 5 to 8 carats and the value of the ring in the neighborhood of $500,000 to $600,000.

On April 5, Culpo and McCaffrey had shared a 10-pic carousel of their RV adventure in the desert with the caption, "Road-trip shenanigans," without revealing that they had been engaged three days earlier.

It's been reported that their adventure included a stop at the tony Amangiri resort in Canyon Point, UT, but it's not clear if the proposal took place there.

In an Instagram Story, Culpo admitted, "We tried to keep this quiet for as long as possible but apparently word travels fast.”

The 26-year-old Stanford alum, who was recently traded to the 49ers from the Carolina Panthers, reportedly worked with Nicole Wegman of New York-based Ring Concierge to design a ring that matched Culpo's "trend-setting style" while "still remaining timeless."

Culpo won the title of Miss Universe in 2012 after qualifying as Miss USA and Miss Rhode Island USA. The soon-to-be bride is a successful model and influencer, and she even starred in a short-lived 2022 reality series called The Culpo Sisters.

McCaffrey and Culpo first started dating after being set up by friends in May 2019. They have been sharing their romantic adventures on social media ever since. Culpo has been particularly supportive of McCaffrey's football heroics.

In early January, Culpo wrote, “WHAT A YEAR ! So proud of you @christianmccaffrey. You deserve this and beyond. Next up, playoffs!”

The 49ers would eventually lose to the Philadelphia Eagles in the conference championship.

Credits: Images via Instagram / oliviaculpo.

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