Cher's son Chaz Bono surprised his longtime fiancee by presenting her with an engagement ring on her recent birthday.

The transgender star proposed to Jennifer Elia in 2009 but revealed during a TV interview in May (11), "We've been engaged for two years and we've had to put things on hold."

Bono has now cemented their engagement by presenting Elia with a diamond during a birthday trip to Seattle, Washington.

The moment was caught on camera for upcoming TV show Being Chaz, with Elia gushing, "Wow, it's gorgeous - thank you so much. It's stunning. It's huge. What he did was romantic. Who would have thought Seattle would be so special?"

Bono adds, "I wanted to pick a special place to give her her birthday present."

The show will air on the Oprah Winfrey Network (OWN) on Sunday (27Nov11).