The Orbella Halo Ring rings a cluster of diamonds with solid gold beads, on approx. 4.28 g of solid 18K gold (750 hallmark), in yellow, rose or white gold, with a certificate of authenticity. The beads are what make an Orbella an Orbella — rounded gold returns light softly rather than in points, so the cluster reads brighter against them. At 0.18 ct on 4.28 g the gold leads; the Orbella Quadrant sets a square-cut stone at 0.28 ct instead. Product Details 18K Gold WeightApprox. 4.28 g Diamond WeightApprox. 0.18 ct DetailSolid gold beads around a diamond cluster