This item was purchased approximately 25 years ago. I believe I bought it for around 350,000 yen at the time. There is no certificate of authenticity. It has been cleaned and polished with a special cleaner solution, but there are some minor scratches from use, so please check the photos. [Details] ・Type of main stone: Diamond ・Carat (weight): Total 1ct ・Shape: Round brilliant cut ・Weight: Approximately 4.1g (slight variations may occur) ・Metal type: Pt900 ・Size: Approximately size 16 ・No certificate of authenticity ・No special case or outer box. ・Cleaned ◆Includes shipping ◆Please understand the characteristics of used items before purchasing. Please refrain from purchasing if you are sensitive to imperfections. ◆To prevent switching, please refrain from canceling after purchase. ※If you have any concerns, please comment before purchasing. Color: Silver系 (Silver-toned) Material: Platinum Stone: Diamond Scratches/Discoloration: None