Gifting: Make for a beautiful gift for a special someone. Jewellery: Get gold square cubic zirconia stud earrings. Base metal: Copper and zinc. Fastening: Twist. Options: 3+4mm, 5+6mm or both. Design: Each earrings features one square clear cubic zirconia crystal. Gold Square Cubic Zirconia Stud Earrings | Silver | Living Social