Emerald Style Halo Diamond Ring with Round Micro-Set Side Stones 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 6x4mm emerald cut center stone.Metal Type: 18kt goldMetal Color: WhiteStone Type: Diamond - WhiteCenter Stone Shape: EmeraldStyle: Halo style Weight: 4.59Accent Diamond-Shape: RoundAccent Diamond-Weight: 0.61