The reality star presented her with a 2-carat diamond on a yellow gold ... who presented her with an emerald-cut diamond engagement ring by Neil Lane featuring twisted detail on the sides.

J.Lo's enormous emerald-cut "rare" engagement ... photo of the sparkling ring on the superstar’s finger, giving fans a close-up view of the mega-carat emerald-cut diamond. Though the couple ...

While official confirmation of this highly anticipated engagement has yet to break ... Set on a platinum band, the ring featured a 16.5-carat emerald cut diamond flanked by two 2-carat trapezoid cut ...

"The average carat weight for a natural diamond engagement ring ... Cut - A lot of the time, cut is mistaken for shape but shape refers to just that, whether it's an oval, emerald, square etc.

From Jennifer Lopez's pink engagement ring to Kim Kardashian's 15-carat stunner, read on for a roundup of some of the most expensive celebrity rings of all time.