Reuters/Carlo Allegri

Kylie Jenner is seen in this photo. 

Reality star Kylie Jenner was spotted wearing a huge diamond ring, sparking rumors that she is engaged to boyfriend Travis Scott.

In a Snapchat video on Saturday, the 20-year-old model was seen driving and wearing something really noticeable on her left ring finger — a huge diamond that stood out behind the wheels. Fans noted that it was very hard to miss.

In the video, Jenner was cruising along Los Angeles, on her way to the cherry blossom-themed baby shower of her sister Kim Kardashian-West, who is expecting her third child with Kanye West to arrive via surrogate this winter.

This is not the first time the Lip Kit creator was rumored to be engaged. In September 2016, she posted another Snapchat video that showed a huge diamond on her finger. This was back in the time she was still dating 27-year-old rapper Tyga. The then 19-year-old TV personality showed off the huge oval-shaped rock side-by-side Tyga's hand, which was sporting its own giant ring.

Jenner, however, noted then that it was merely a promise ring. "If this is my promise ring I wanna know what my engagement ring is gonna look like," she captioned.

The two, however, broke up last April, the same month she reportedly started dating 25-year-old rapper Travis Scott. In September, it was rumored that the "Keeping Up With the Kardashians" star and the "Butterfly Effect" artist are expecting their first child together. Sources then said their baby, a girl, is due in February 2018.

Sources told People that Jenner threw her own baby shower on Sunday, the day after Kardashian-West's. Insiders said it was a tight and intimate party at her Hidden Hills home in California. They added that the theme was pajama party, the same one Kardashian-West used to welcome the arrival of her second child, Saint, in 2015.

Despite persistent pregnancy rumors, Jenner has yet to confirm such or comment on her supposed engagement ring.