The earrings for sale represent a circle (button type) with an onyx center with a silver border The earrings are made of real silver at 925 thousandths, with an element in polished black onyx. Metal: 925 silver, rhodium finish (white gold effect) and black onyx. Measurement of the central black stone: about 10 mm, complete diameter of the earrings: 12 mm. weight about 2,9 gr. Offer for the couple (1 pair) as shown in the photo