Details Pair of statement studs featuring an oval-shaped Natural Aventurine center stone Aventurine Stone center Earrings are 25 x 20 mm Stone size is 13 x 18mm Each pair weighs 17.22 grams Part of the Night Swim Collection Materials Made from Brass and Natural Aventurine stone Plating is waterproof and tarnish free 14K plated brass and Rhodium plated silver with E-Coating Plated high polish 14K Gold or Rhodium for maximum shine Posts are made from surgical steel so they are very hypo-allergenic for sensitive ears Earrings are 100% nickel-free and cadmium-free