Platinum diamond engagement ring with appraisal certificate - Brand: TIFFANY&CO. - Accessories: With appraisal certificate - Material: Platinum - Stone type: Diamond - Box color: Tiffany Blue The size is about 16mm inner diameter. I forgot the ring size. Thank you for viewing. Material... Platinum PT950 Accessories... Appraisal certificate, box There is no date engraving. The outer box has some sun damage and stains. Purchased around 2010. Purchased at a directly managed store in Tokyo. Please purchase after sufficient understanding. Returns are not accepted to prevent replacement.