Bobbi Kristina Engagement Ring On Your Finger?

Bobbi Kristina Brown... engagement ring on her hand?Whitney Houston's daughter was sporting an interesting piece of jewelry on her ring finger during her PDA-filled stroll with her "adopted" brother this week ... a big, fat ring.

As we previously reported, Bobbi Kristina and Nick Gordon finally went public with their relationship this week ... holding hands and kissing during a lunch date in Atlanta.

Now, with rumors swirling about a possible engagement ... the massive ring on Bobbi's finger isn't doing anything to hint otherwise.

Congrats ... maybe?

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