This item was purchased about 15 years ago. I believe I bought it for around 700,000 yen at the time. There is no certificate of authenticity. I have only used it a few times. I have cleaned and polished it with a special cleaner, but there are some minor scratches from use, so please check the photos. 【Details】 ・Stone Type: Diamond ・Carat (Weight): 1.018ct ・Shape: Round Brilliant Cut ・Weight: Approximately 4.6g (slight variations may occur) ・Metal Type: Pt900 ・Size: Size 8 ・No certificate of authenticity ・No special case or outer box. ・Cleaned ◆Includes shipping ◆Please understand the nature of used items before purchasing. Please refrain from purchasing if you are sensitive to this. ◆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 Size: Size 8