18K Gold Plating: Generously electroplated with authentic 18K gold for a rich, warm, luxurious luster. AAA Grade Cubic Zirconia: Studded with hand-selected, brilliant-cut AAA CZ stones that mimic the precise light refraction and fire of real diamonds. Anti-Tarnish Protective Shield: Coated with an advanced electronic lacquer layer to prevent oxidation, discoloration, and color fading over time. Hypoallergenic Composition: Engineered entirely lead-free and nickel-free to ensure comfortable, irritation-free wear for sensitive skin types.