Thank you for viewing. This is a collaboration accessory worn in the music video for the GazettE's "Guren." I liked it and wore it at the time, so there are no chips, but there is a feeling of use. The middle ring of the three-ring set originally had a black coating, but it's almost gone. When combined with the upper and lower rings, the color has faded to the point where you can tell there's a slight difference. I remember the stones were zirconia, but I'm not certain. A guarantee is not included. Everything in the photos is included. I used it for several years, but I'm selling it because it no longer fits. Please understand that there is some wear and tear before purchasing. Also, returns are not accepted.