These earrings have so much sparkle! The resin stone diameter is 12mm, appx. 1/2". Set in a round, stainless steel, bezel setting. Hypoallergenic for sensitive ears. In stock and ready to ship out. Comes in a gift box for easy gift-giving. They're so unique though, you might be tempted to keep them for yourself! Nickel, lead and cadmium safe.