Created Blue Fire Opal||6mm Stone||GINGER LYNE COLLECTION - Proud US Owned Corporation. We are a US Registered Trademarked Brand||925 Sterling Silver (92.5% Fine Silver||7mm Earring Size||Sterling Silver Crown Simulated Blue Fire Opal Stud Earrings From the Ginger Lyne Collection Opal Size:6mm Earring Size: 7mm Metal: .925 Sterling Silver Plating: Rhodium