14kt gold over sterling silver. 3" long. The onyx balls have cuts in them like a cantaloupe. I am allergic to metal, and can only wear 14kt gold, and higher, and/or sterling silver. By wearing the earrings, I knew they were real, because I had no reaction. I have sanitized them 4 times. Originally purchased from a long time eBayer. Check out the link for other items I have for sale. Please leave a message if I am not available. No e-mails please. Texting is okay.