Acooe Pearl Earrings, Sterling Silver Freshwater, Lobster Clasp, Pierced, Classic, Cultured Stud Earrings THE STUD: Real S925 silver studs. GIFT BOX: As you can see the photos, there is a beatuful gift box, it is free here, and it may spend you 6USD to buy this box on Amazon. Measurement: The pearls is about 7-8mm diameters. WARRANTY--- 30 days 100% satisfaction gaurantee or money back