In 2016, I purchased a 10K gold diamond earring at the Agata Paris Mitsukoshi Nihonbashi store, but I lost one of them. I am selling this single earring for someone looking for a replacement. The 10K gold hallmark on the earring is fading, but the post is clearly marked K10. I don't have the warranty, but I found the purchase card, which I have included in the photos. The earring top is approximately 4mm. The total length of the earring is approximately 10mm. The diamond size is 0.02-0.03ct. I cannot include the box due to shipping costs, but I will carefully package the earring in an Agata Paris cloth bag before shipping. I would appreciate it if you could understand that this item has been stored at home by a private seller.