Approximately 27 cm in diameter. It has been stored at home for a long time. This is a very simple serving bowl, so it can be used in any situation. I also have other items for sale, such as a pearlescent lacquered confectionery bowl. I will offer a discount on shipping costs for those who purchase multiple items together. I will pack the item to prevent water damage and breakage before shipping. Shipping is at the buyer's expense. Price negotiations are welcome. (I may be slow to respond due to work. Thank you for your understanding.)