Irina Shayk Flaunting an Engagement-ish Ring

Irina Shayk is weighed down by more than a baby bump these days ... check out that ROCK!!

The almost definitely pregnant super model was leaving a spa in L.A. when she whipped out her left hand and brandished what appears to be a huge emerald encircled by diamonds. So, ya gotta wonder -- did Bradley Cooper pop the question?

The ring looks eerily similar to LiLo's engagement ring -- though we're sure Irina's hoping hers comes with much better luck.