Split Shank Twist Ring with Round Diamond Accents in 18kt White Gold (D. 1/4 carat total weight) This item is a SEMI-MOUNT and it comes with NO CENTER STONE as shown but it will accommodate a 6.5mm round center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Classic Weight: 4.55Accent Diamond-Shape: Round Full CutAccent Diamond-Weight: 0.24