Split V Shank Halo Diamond Ring in 18kt White and Yellow Gold. (Wht D 3/8 carat weight and Yellow D. 1/10 carat 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: Two-toneStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Halo style Weight: 6.6Accent Diamond-Shape: RoundAccent Diamond-Weight: 42802