Cathedral Style Diamond Ring with Round Halo 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 6.5-7mm round center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Halo style Weight: 4.88Accent Diamond-Shape: Round Full CutAccent Diamond-Weight: 0.29