18K GOLD PLATED.All gold-plated Mystigrey jewelry is plated with 18K gold. 18K gold contains 75% pure gold and 25% other metals, thus making gold stud earrings a higher quality of gold compared to 14K (which contains only 58% pure gold). SKIN-FRIENDLY JEWELRY. Our jewelry is skin-friendly and appropriate for sensitive skin. The high-quality materials and craftsmanship of the pieces mean they will not corrode or irritate the skin, ensuring clover jewelry for women can be worn on a day-to-day basis without issues.