Our wire-wrapped moon earrings feature a natural gemstone cut into a crescent moon shape. Each natural stone will show variation in tones and color. No two are alike. Clear Quartz Gemstone Crescent Moon Tarnish Free - Long lasting protective coating safeguarding your jewelry from sweat, water, and more. Sterling Silver Posts – 18K gold plating over brass Hypoallergenic – Lead Free Moon Dimensions 15mm x 5mm