KATE -4 CT HALO MARQUISE DIAMOND ENGAGEMENT RING BY MIKE NEKTA GIA CERTIFIED Center Diamond Carat Weight: 3 Carats Color: Light YellowClarity: SI1Cut: MARQUISE BRILLIANT Measurements: 14.9 x 7.3 x 4.6 mm Ring: Metal: 18K YELLOW GOLD Style: HORIZONTAL HALO MARQUISE DIAMOND RING Diamonds: 1 carat Size: Can be adjusted to any size.