This is a platinum ring with a dazzling design featuring a natural, single diamond. Size: 14 (Japanese size) Material: "pt900" Weight: 4.3 grams Diamond: "0.31ct" Cut: Round Brilliant Cut For reference, an acquaintance who deals in precious metals examined it and estimated the diamond's color to be "D-E" and clarity to be "VS-VVS." Comes with a high-quality original case with arabesque engraving, the seller's warranty, and an appraisal certificate. Condition: There are minor age-related scratches, but it appears to be in good condition without any noticeable flaws. Thank you.