Rocks Couture Collection 9ct White Gold Round Open Circle Stud Earrings Decorated With White Baguette & Round Cut Cuic Zirconia Stones. These chic stud earrings are made from precious 9ct white gold, and feature eternal circles embellished with cubic zirconia baguettes. Perfect for bringing a touch of shine and sparkle to your everyday look. Earring is 6mm Hallmarked in the Assay Office at Dublin Castle