YOKO EMERALD CUT DIAMOND ENGAGEMENT RING 18K WHITE GOLD BY MIKE NEKTA GIA CERTIFIED Center Diamond Carat Weight: 5.7 Carats Color: H* Clarity: VVS1 Style: EMERALD CUT Measurements: 11.5 x 8.6 x 5.9 mm * This diamond has been treated by one or more processes to change its color. Ring: Metal: PLATINIUM Metal Weight: 7.53 gr Style: Channel set Micro Beaded. Diamonds: 1 carat. Size: Can be adjusted to any size. Big carats, rare cuts, exclusive brilliance — browse now.