Halo Diamond Ring in 18kt White Gold with Round and Baguette Diamonds. (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.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: RoundStyle: Vintage Weight: 4.5Accent Diamond-Shape: Round, BaguetteAccent Diamond-Weight: .17-Round, .45 baguette=.62ctw