Square Halo Diamond Ring with Milgrain Detail in 18kt White Gold (D. 1/3 carat total weight) This item is a SEMI-MOUNT and it comes with NO CENTER STONE as shown but it will accommodate a 5-5.5mm princess cut center stone. This Ring requires a Curved Matching Band, #117221-W, sold separately.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: PrincessStyle: Halo style Weight: 4.01Accent Diamond-Shape: Round Full CutAccent Diamond-Weight: 0.32