These are a pair of heart-shaped stud earrings, identified as "Silver Berlin Heart Earring - Dark Blue" Material: The earrings are made "925 Sterling Silver" and "SILVER Handmade Jewelry". They appear to have a rose-gold plating. Design: They are stud earrings featuring a central heart-cut blue stone surrounded by smaller CZ , forming a halo design. A single CZ is also positioned above the heart motif. Stones: The blue stones are sapphire-colored gemstone. Closure Type: The earrings likely use a push-and-plug screw type.