4°C Necklace 40cm I have discarded the warranty and other documents. I purchased it over 5 years ago. The clasp is engraved with "4°C SILVER". It has a gold-like color, so it may have been coated. (I apologize, I don't remember very well) It has a heart design with zirconia! (It also has a light purple stone) It has a presence and is cute ❤️ I think it's probably unused. There are many unknowns, such as the material, but I hope to pass it on to someone. It is definitely a 4°C product. Thank you! ※It will be shipped in a box from a different brand.