This ring was made from a jade rough stone from Omi, Itoigawa. The ring is made from a part of the rough stone that contains black jade. However, it contains cracks. The product price takes the cracks into consideration, so there is no warranty for chips or breaks. Please consider this an "experimental item" of Itoigawa jade. This ring has a gentle feel due to the handmade distortions. Since no chemicals such as wax are used, you can enjoy the natural texture of the gemstone shown in the photos for a long time. Please consider the photos for reference. ● Size: Size 13 ● Width: Approximately 5.6mm ● Thickness: Approximately 3.1mm ● Weight: 2.61g ● Condition: Polished finish ● Other: No coloring, crack concealment, or wax treatment. If you have any questions, please feel free to comment. Jade is by no means inexpensive, so we hope you will be satisfied with your purchase. We are also selling this item elsewhere, so please understand that we may cancel your order depending on the timing of your purchase. Thank you for your understanding.