These earrings have so much sparkle! The dark silver stone diameter is appx. 1/2". Set in a hematite-tone round bezel setting. Zinc alloy over brass. Post closure. These are really versatile and Im sure will be a new favorite! In stock and ready to ship out. Comes in a gift box for easy gift-giving. Theyre so fun though, you might be tempted to keep them for yourself! To avoid ear irritation, please dont wear while bathing, swimming, exercising, or sleeping. This larger diameter stud can trap moisture. Ear lobes like to be dry!