OLGA DIAMOND ENGAGEMENT RING 18K YELLOW GOLD GIA GIA CERTIFIED Center Diamond Carat Weight: 4 Carats Color: S TO T RANGE Clarity: I1 Style: EMERALD BRILLIANT Measurements: 11.2 x 7.9 x 4.9 mm Ring: Metal: 18K YELLOW GOLD Style: HALO AND SIDESTONE BAND Diamonds: 0.60 carats. Size: Can be adjusted to any size.