“If you’re a celebrity and you see a 4-carat diamond on the red carpet ... jeweler on customizing her Medi Classic four prong solitaire diamond engagement ring. After hours of researching ...

The sparkler is a three- to four-carat oval diamond set on a solitaire ring, says Olivia Landeau, the founder and CEO of The Clear Cut. “This is a classic and timeless style ring,” she adds.