Dark and dynamic. Giani Bernini's stud earrings feature round-cut black cubic zirconia (2 ct. t.w.) for a stylish touch. Set in sterling silver. Approximate diameter: 1/4 inch. Giani Bernini Black Cubic Zirconia Stud Earrings (2 ct. t.w.) in Sterling Silver, Created for Macy's Jewelry & Watches Fine Jewelry - Earrings