Karrueche and Chris Brown -- He Loves Me Not, He Loves Me

Chris Brown has gone from venomously putting Karrueche Tran on blast ... to giving her what looks like a small diamond mine.

Karrueche coyly posted the pic of her latest acquisitions ... courtesy of CB.

She's not saying if either is an engagement ring, but it's doubtful given that it's on the wrong hand.

It's certainly a major about face ... we spotted them the other night leaving Playhouse nightclub in Hollywood, the first time they've been publicly seen since their nuclear breakup.

Looks like he also gave her a pooch.