18kt White Gold Diamond Ring with a Emerald Style Halo. (D1/3 carat total weight) This item is a SEMI-MOUNT and it comes with NO CENTER STONE as shown but it will accommodate a 7x5mm emerald cut center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: EmeraldStyle: Halo style Weight: 7.1Accent Diamond-Shape: RoundAccent Diamond-Weight: 0.31