Sterling Silver White & Green Cubic Zirconia Halo Cluster Pave Ring. Add this beautiful sterling silver ring to your wardrobe and jewelry collection, perfect for refreshing any day, moment, or occasion attire with chic style. A round brilliant cut cubic zirconia bezel set in the center becomes the main attraction, complemented by pave set round brilliant cut cubic zirconia also pave set on the tapered band. Custom-cut green cubic zirconia adds vibrancy in the middle, and is also the birthstone color for May. Available in ring sizes: 6,7,8.