Round Diamond Ring in 18kt White Gold (D. 3/8 carat total weight) This item is a SEMI-MOUNT and it comes with NO CENTER STONE as shown but it will accommodate a 5.8mm round center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Classic Weight: 4.2Accent Diamond-Shape: roundAccent Diamond-Weight: 42802