Condition: New Cubic Size: 3mm Claw, Frame, Post: 18K Yellow Gold Marking: K18 Catch: Silicone and 18K W-catch These four-prong stud earrings with cubic zirconia are very popular for their brilliant sparkle. Also, because they are made of 18K yellow gold, they will not peel or discolor like gold plating, and they will not cause allergic reactions. (※Excluding those with allergies to 18K gold.)