Rihanna has fuelled rumors that she is engaged to Chris Brown, after being spotted wearing a big diamond ring on her wedding finger.

As well as being seen in new photos of the 'Umbrella' star, the ring could also be viewed as Rihanna performed wearing fingerless gloves at the O2 Arena in London on Wednesday evening (December 31), as part of Elton John's New Year's Eve party.

"Rihanna was wearing the biggest diamond you can imagine," a source tells UK newspaper The Sun.

I think this is fake I really hope it is.

The Sun.

There you go, all you need to know.

If you liked it then you shoulda put a ring on it

I can see it O.o

LMAO. Can't a girl wear a ring on her finger without people assuming she's engaged? I wear a ring on my "wedding finger" all the time.

Ohhh and he liked it.

OK. Maybe it can distract her from re-re-re-releasing GGGB

Chris Brown is probably an idiot in real life but congrats to Rihanna.