Diamond and Sapphire Vintage Ring in 18kt White Gold with Engraving and Milgrain Detail. (D. 1/4 carat weight, S. 09 carat 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.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Vintage Weight: 4.68Accent Diamond-Shape: RoundAccent Diamond-Weight: 0.26