Engagement rumours as Katy Perry shows off her massive yellow diamond (Photos)

First there were rumours Katy Perry and Orlando bloom had split up after a whirlwind romance, they turned out to be false. Now the singer is feeding the rumour mill with even more juicier news as she was spotted flashing a huge diamond rock while on a night out with Orlando and grinning from ear to ear. No word yet on whether they are engaged but it's not the first time Katy has won a diamond sparkler on her left hand. More photos after the cut.