These 14k yellow gold stud earrings from Belk & Co. for kids feature created opal and cubic zirconia that measures 4-millimeters x 4-millimeters. Almost all gemstones have been treated to enhance their color and require special care. 2 Created Opals, 2 Cubic Zirconia Screw back post earring Polished finish Imported Belk Exclusive Product Specifications 4 mm L x 4 mm W Material & Care 14K Yellow Gold Clean with a soft cloth