Hypoallergenic and suitable for those with sensitive skin. These earrings feature a beautiful 925 silver plating that provides a lustrous, high-quality finish. They are made with nickel-free and lead-free materials to ensure the safety of our customers. • Symbolically, opal is often associated with creativity, inspiration, and emotional expression. In ancient times, it was considered a stone of good luck and mystery, believed to hold the essence of all other gemstones due to its spectrum of colors.