Romance U-Prong Milgrain Round Diamond Ring in 18kt White Gold. (D. 5/8 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. Basket peg headMetal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Classic Weight: 3.86Accent Diamond-Shape: Round Full CutAccent Diamond-Weight: 0.6