3-Stone Trellis Diamond Ring in 18kt White Gold with Milgrain Detail. (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 6.5mm round center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: 3-stone Weight: 3.96Accent Diamond-Shape: RoundAccent Diamond-Weight: 0.42