Cardi B recently showed off an extravagant Cartier jewelry haul as well as a surprise gift from her boyfriend Stefon Diggs: a diamond-embellished Patek Philippe Nautilus watch.

Cardi B’s boo boo surprised her new jewels from London ... The boo boo in question is rumoured to be none other than Stefon ...

The Black Sabbath frontman died on July 22 ate age 76 of a heart attack, with contributing factors of coronary artery disease ...