Mariah Carey and James Packer
You better be sitting down, because this is a big one. Mariah Carey’s engagement ring is perhaps the most extravagant one on our list, a 35-carat diamond ring estimated at $10 million.
After the couple divorced, Carey insisted on keeping the ring as part of their settlement agreement, and with good reason. We wouldn’t want to part from a ring like that either. Recently, though, she gave up the ring in an attempt to move on.