Item type:925 sterling silver opal stud earring: hypoallergenic and nickel free, 100% safe to sensitive skin. The opal stone is lab created, they’re not fragile as natural opal and the color won??t fade. The 925 sterling silver round cut opal stud earring are suitable as gifts to send women, girls, moms, girlfriends and etc with a beautiful gift box. The earrings are suitable for many occasions: birthday, valentine’s day, engagement, promise, wedding, anniversary, to women, mom, mother in law, wife, daughter, aunt, best friend, girls, teens. Any problems about the 925 sterling silver stud earrings , please be free to contact us. We will solve the issue by refund or replacement.