Jennifer Lopez & Harry Winston engagement ring

To be honest, with so many engagement rings, it's no wonder that Jennifer Lopez has been on this list several times. There are five in all.

In 2019, professional baseball star Alex Rodriguez proposed to her with a stunning 15-carat emerald-cut diamond ring set on a platinum band. The gem is said to have cost at least $1 million and could be worth up to $5 million (£3.7 million).

Although the exact specifics of the ring have not been revealed, there has been a lot of conjecture in the media.

Jennifer Lopez & Harry Winston's engagement ring was a rare blue 8.5-carat diamond ring, valued at $4 million at the time. Taking inflation into account, this gem is now worth roughly $5.5 million (£4 million) at the time of writing, making it more valuable than Rodriguez's ring.

Estimated Cost: $5.5 million