Materials: Natural stone - Neon Blue Apatite: 5mm Earring findings: Brass, [plated] Nickel-free Stone setting: Brass Jump rings: Brass Price reduction is final. *Please be aware if you have allergies. *Please refrain from purchasing if you are concerned about inclusions or chips unique to natural stones. *Each item is carefully packaged and delivered to our customers. *Please note that the color and shape may differ slightly due to camera effects. *Nickel-free plating is used. Therefore, this product is less likely to cause allergies compared to plated metal findings. However, due to the nature of nickel-free plating, there are disadvantages such as uneven coloring, fine irregularities and roughness on the surface, and faster degradation of the plating compared to plated metal findings.