This is a single earring for sale. It is a guaranteed authentic CHANEL item purchased in Ginza. I wasn't able to get a good picture of the beautiful engraving due to the reflection, but it says B18K. Both the leather chain and the BIG Coco mark are popular CHANEL designs. There are two types of stones, and they sparkle beautifully. The size is 2cm in length and 2.5cm in width. There is no box. The included accessories are the earring and the catch only. The catch has delicate scratches. I was told by the shop staff that these scratches are inherent to the material.