He put a ring on it! Justin Bieber gifted his lady love, Selena Gomez, with a diamond ring for Valentine's Day. So are the duo engaged?

Probably not. It's not an engagement ring, and Biebs is only 17! The ring features diamonds in the shape of a "J," presumably for "Justin." It's a tiny, delicate piece that suits Sel's understated glam style perfectly. Gomez posted a photo of the ring (and her hand in Bieber's) on her Instagram page, writing, "I'm finally home." Awww!

That wasn't the only Valentine's Day treat she got from her adoring beau. She also posted a photo of a beautiful bouquet, writing, "So lucky." Indeed she is!

It's not the first time Bieber's shown he knows how to treat a lady. Last month when Gomez was on tour in Latin America, the Biebs hopped on 6,000 mile flight to be with her in Puerto Rico, where they dined at the upscale Pikayo restaurant in the Conrad Condado Plaza Hotel and Casino. Earlier that month, the cute couple were spotted making out like teenagers -- appropriately enough -- at Disneyland.

While we're pretty sure we'll have to wait a few more years to see these two tie the knot, we love just how in love they are now. Gentlemen, we hope you're taking notes!