This Diamond Ring set in 18kt White Gold features a Claw Prong 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 8.5x6.5mm emerald cut center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: EmeraldStyle: Classic Weight: 4.08Accent Diamond-Shape: roundAccent Diamond-Weight: 42737