Katrina Kaif flaunts a huge rock on ring finger, is that her engagement ring?

A few days ago it was reported that Katrina Kaif has got engaged to her rumoured beau Ranbir Kapoor in a secret ceremony in London.
Kaif, who attended the Umang show in Mumbai recently, along with Ranbir Kapoor was seen flaunting a huge rock on her ring finger. We wonder if that’s her engagement ring?
Katrina Kaif, who was pretty in an anarkali, was dancing to ‘Chikni Chameli’ along with director Karan Johar, when one got a glimpse of the huge rock on her ring finger. It could be but we aren’t sure.
Katrina and Ranbir have never publicly admitted to their relationship status. However, the rumoured lovers have been spotted together quite often on outings and night outs around town. There were reports of the two having moved in together in a suburban apartment.