Cathedral Style Diamond Ring in 18kt Yellow 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 or 5.5 cushion cut center stone. Peg HeadMetal Type: 18kt goldMetal Color: YellowStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Classic Weight: 3.62Accent Diamond-Shape: roundAccent Diamond-Weight: 42737