A classic. These stud earrings set with a cubic zirconia are sterling silver based and rounded. Perfect for every occasion. MATERIAL Sterling Silver BasedZirconia CrystalHypo-allergenicAllergy free DIMENSIONSApprox. Width: 1mm DELIVERYEach Mezi piece is packed and shipped out within 3 business days. We use Australia Post eParcel Pamp;H is $10 Australia wide and $25 International.