What do we spy there on Kaley Cuoco's finger?

"The Big Bang Theory" actress posted a photo to Instagram sporting a very shiny looking ring on her ring finger. The ring is peaking interest from its placement, but also because it doesn't look like the faux wedding ring she wears for her popular TV show.

The photo sparking all the interest is an adorable snap of her holding her friend's baby seemingly on the set of "The Big Bang Theory."

"My favourite tiniest @thebigbangtheory__ visitor πŸ‘Άhe was picking the best filter for this photo πŸ˜‚πŸ’— @ashleyaubra #babyhayden," she wrote.

The ring in the photo isn't accompanied by a wedding band, which it would be if it were her TV ring. The sparkler on that suspicious finger also looks to be much bigger than the one she adorns on the the show, and the band seems to be a little different.

Things that make you go hmmmm...

Since divorcing Ryan Sweeting in September 2015, Kaley has been dating billionaire heir Karl Cook.

Kaley and Karl has first got together in early 2016 and she wasn't exactly shy about her romance, often sharing photos of the two of them riding horses or kissing on the beach. The two are fairly inseparable, at least according to her Instagram page.

Finally πŸ˜ŒπŸ¦„πŸ΄

A photo posted by @normancook on

On Monday she even posted a photo of her puckering up to kiss her beau.

πŸ‘†πŸ½I miss this face already πŸ’‘πŸ¦„πŸ΄

A photo posted by @normancook on

"I miss this face already," she captioned the black and white image.

In an interview with "CBS This Morning" in May she gushed about Karl, calling him "special."

In the same interview she also opened up about her divorce.

"You know what, I'm not ashamed of anything that happened," she said. "I fall in love really hard. I go deep and that person is it for me. I love hard, and when it's over, it's over."

She also said she was open to marriage again, even though her first one didn't work out.

"Even when I was going through it, I was like, 'Oh, I'm never gonna love again' -- I can't even pretend to say that because it's not me, it's not my heart," she said. "I know that's not me, and I know I will again ... Now I'm in this position and I've actually never been happier."