Square Halo Diamond Engagement Ring in 18kt White and Rose Gold with Scroll Detail. (D 3/8 carat total weight). This item is a SEMI-MOUNT and it comes with NO CENTER STONE as shown but it will accommodate a 5.5mm princess center stone.Metal Type: 18kt goldMetal Color: Two-toneStone Type: Diamond - WhiteCenter Stone Shape: PrincessStyle: Halo style Weight: 4.4Accent Diamond-Shape: RoundAccent Diamond-Weight: 0.43