More recently, she's been spotted wearing a square-cut yellow diamond set on a pavé band. Another standout ring is the 15-carat, emerald-cut diamond Beckham received in 2008. Designed by Chopard ...

Ora didn't unveil her square-cut, 10-carat Colombian green emerald ring until a year after she and Taika Waititi married. The piece has a diamond halo and a yellow gold band. 28 of 33 ...

Channel your inner Princess Diana or Duchess of Cambridge with this sapphire stunner, framed with a diamond halo. Le Vian Couture® emerald cut sapphire ring set in platinum, $52,150, levian.com. SHOP ...