Has Chris Brown just bought Karrueche a Diamond engagement Ring?(pic)

Karrueche was spotted leaving a club with Chris Brown on Dec 24th,suggesting the couple are back together again.Karrueche then posted this pic last night,
showing off two diamond rings .She captioned it with a love symbol...

Now the fans are speculating Chris Brown may have won her back by popping the question. The only snag though is, the ring is on her right finger.Still,you don't just buy a ring like that just for buying sake do you?