⚠️ To prevent swapping, returns are not accepted after purchase. ⚠️ K18 (18-karat gold) necklace Diamond: 0.3ct No appraisal certificate. 4Cs unknown. Chain length: Approximately 40cm (With adjuster ring - approximately 3cm) The chain itself is thin and cute♪ I don't have a scale, so I don't know the weight. There is a distortion in the chain, but I think it will not be a problem to use. Please check the 5th photo. It doesn't straighten. I could only confirm one place, but there may be others. Please refrain from purchasing if you are nervous about used items.