Credit: Stefanie Keenan/Getty Images for Beats by Dre

If you’ve got it, flaunt it. Kylie Jenner showed off an enormous diamond ring on her finger — but not that finger — in a Christmas Day Instagram post on Friday, December 25.

The shot, which the 18-year-old captioned simply with a Santa emoji, shows the reality star’s right hand gripping the bottom of a steering wheel. Jenner also shared another image of her hand resting on her leg via Twitter with the caption “Merry Christmas.”

The youngest Kardashian-Jenner sister further clarified that she's not a soon-to-be-Mrs. with a post on her site.

"Every year my Mom throws a huge Christmas Eve party and this years was so fun (and sparkly)! It was really special to end such a big year celebrating with all of my friends and family... and with an extra special gift from a special someone," she wrote. "And NO, I'm not engaged :)"

Engagement rumors have frequently swirled around the Keeping Up With the Kardashians star and her boyfriend, Tyga. Back in September, the pair had fans talking after the “Rack City” rapper called Jenner his “fiancée” in a lovey-dovey Snapchat video.

🎅🏽

A photo posted by King Kylie (@kyliejenner) on

“I don’t f‑‑k with nobody. I f‑‑k with nobody,” the 26-year-old says in the video, during which Jenner wraps her legs around his waist. “It’s just me, my fiancée [and] this lil’ dog I just got. I f‑‑k with nobody.”

The pair were rumored to have split briefly in November, around the time of Tyga’s 26th birthday, but during an interview with Ellen DeGeneres, Jenner confirmed that the pair were still an item.

When the talk-show host pushed Jenner to clarify whether she and Tyga were still dating, Jenner coyly explained that the pair were “hanging out.”

“What does that mean, ‘Hanging out'?” DeGeneres asked.

“That’s it,” the famous teen replied. “We’re still together.”

On Christmas Day, the reality star got into the spirit of giving, donating holiday gifts to the L.A. LGBT Center, a charity resource for LGBT teens.

“She wanted to give gifts to kids who didn’t have any gifts to open on the holidays,” a source told Us. “She fully did it on her own.”

Want stories like these delivered straight to your inbox? Sign up now for the Us Weekly newsletter!