CHP / FAMEFLYNET PICTURES / Wonderwall 1 / 4
CHP / FAMEFLYNET PICTURES / Wonderwall 1 / 4

Rick Ross really is the boss -- at least in terms of picking out jewelry!

The rapper put an engagement ring on his girlfriend Lira Mercer's finger and that diamond is more than a rock. It's a boulder!

TMZ reports that the stunning ring is 11-carats and features a 5-carat emerald-cut diamond. The 6-carat band is all diamonds. The cost? The website said the ring set Rick back a cool $350,000!

The couple has only been together for a few months but she has stayed by his side through several legal issues, including an arrest in June for kidnapping and assault for allegedly pistol-whipping another man. The engagement actually occurred in the New York's Rafaello & Company jewelry store, but Rick reportedly didn't get down on one knee.

Lira took to social media to show off the sparkler and to inform the world that she is now a taken woman.

"Thanks @rafaelloandco for making everything EXTRA special! #Mrs" she captioned an Instagram photo of the ring. In a separate video to her 2 million followers, she showed the sparkler while holding her man's hand. "Forever yours," she wrote.