Round Diamond Channel Set Ring in 18kt White Gold with a Peg Head Center. (D 1/2 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. peg headMetal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Classic Weight: 4.75Accent Diamond-Shape: RoundAccent Diamond-Weight: 0.46