This is a K10 ring collaboration between M•A•R•S, a long-established accessory brand in Ebisu, Tokyo, loved by many celebrities and musicians such as actor Kenichi Takito and GACKT, and Blue Blue, a sister store of the American casual brand Hollywood Ranch Market. The original retail price was about 60,000 yen, but due to the current soaring price of gold, gold products from the same brand have significantly increased in price. Please check the official website. This item is made of K10 material and weighs approximately 4g, making it a very valuable item considering the current market price. It is unlikely to be available at the price it was at the time. Furthermore, this item may be discontinued, and the same design is currently difficult to obtain. ■Material: K10 ■Weight: Approx. 4g ■Condition: No noticeable damage (minor scratches due to use) The exact size is unknown, but it is about 15mm to 16mm just before the ring hole. It weighed 4g on a home kitchen scale. Please only purchase if you understand that this is a used item. The price is set considering the soaring gold price and brand value, so we are not considering significant price reductions.