18kt White Gold Sapphire and Diamond Ring with Milgrain Detail. (D 3/8 carat weight, Sapp 1/4 carat weight) This item is a SEMI-MOUNT and it comes with NO CENTER STONE as shown but it will accommodate a 5-5.5mm princess cut center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: PrincessStyle: Vintage Weight: 6.74Accent Diamond-Shape: Round Full CutAccent Diamond-Weight: 0.38