Actress Jessica Lowndes has sparked rumors she is engaged by showing off a diamond ring on social media.

The 90210 star posted a photo of a diamond sparkler on Instagram.com, but the 27-year-old is keeping fans guessing about the meaning of the image as she did not include a caption with the picture.

She has yet to reveal who her mystery suitor is, but Jessica has since posted a video of herself in bed, captioned, "When bae (babe) films you waking up in the morning... #TooOldToUseHashtags #MrBig".

Days ago she also included a photo of a man's hands on her legs with a banner across the picture, reading, "There's a new man in my life," and an accompanying caption stating, "His hands are wise and tell a thousand stories... #smitten #hatersgonnahate".

It is unclear how long Jessica has been dating her new beau, but she has been hinting at the relationship and the couple's reported age difference online since last week (ends25Mar16).

In one of her posts, alongside a picture of two ice cream bowls, she wrote, "You say sugar daddy but I say ice cream daddy! #SweptoffMyFeet #ExtraSprinklesPleaseDaddy", while in another photo, she includes a proverb reading, "Old cows like to eat young grass," while adding her own caption stating, "And I love me some old cows..."

Jessica has previously dated British model Thom Evans, but they split in 2013 reportedly because of their busy schedules.

"It was a mutual decision and Jessica and Thom have been on and off for quite a while now," a source told Britain's Daily Mirror at the time. "Jessica works mostly in America while Thom's modeling work is in the U.K. They have realized it is totally unfeasible trying to maintain a relationship from different sides of The Pond."

She was also previously linked to Olympic athlete Jeremy Bloom and rugby star Danny Cipriani.