White Gold Plating with Cubic Zirconia Halo Medallion Cluster Stud Earrings. Gift these brightly polished White Gold Plating stud earrings to your loved one in mind, or treat yourself to effortless elegance. Round brilliant cut cubic zirconias prong set in the middle gives them a classic cluster design. Shimmering baguette cut and round brilliant cut cubic zirconias channel and prong set in concentric halos created a vintage-inspired medallion shape. Butterfly backs keep them in place.