Showing off her diamond sparkler, Kaley Cuoco arrived on the set of a new film project on Tuesday (September 256).

The "Big Bang Theory" star dressed casually in a gray T-shirt, gray jacket, and dark pants as she proudly wore her engagement bling.

As previously reported by GossipCenter, the 27-year-old actress said "yes" to tennis player Ryan Sweeting, who she'd been dating just about three months.

On Wednesday, the smitten kitten tweeted, "Flying high, I could literally touch the sky with you...."