Shop the best diamond engagement ring designs, from classic oval engagement rings to lab diamond engagement rings from brands ...

The antique cushion-cut diamond is in a pavé setting by ... Jessica Sklar is Seinfeld's star. Hers is a Lucida solitaire diamond ring by Tiffany. Photos: Tricia Meadows/ Globe Photos.

The design featured a pear-shaped solitaire diamond on a yellow gold ... with the singer's latest ring a whopper. It's believed to be a rare cushion-cut green diamond. And it looks like the ...