Authentic and in excellent condition. These are clip on earrings. 18K yellow gold-plated brass hardware for the clips. The clips show minor signs of wear as seen in pics. I originally purchased this item along with many others from an estate auction where all items were authenticated prior to auction and you could opt for the certificate if you won. I did not choose that at the time but I did take a screenshot of this information before I purchased it and have included that in the pics. Unfortunately it did not come with original packaging but I will ship in the envelope I received it in from the auction house and a generic jewelry pouch. Measurements in pics.