From the official website: A pair necklace featuring pink gold accents on "Eternal Silver," an original material that resists discoloration. Product number: 111924421702 -------------------------------------------------- Purchased on 2022/05/02. The 1-year warranty has expired. Worn once, then stored in its case, but it has tarnished, so it has been cleaned. You can get it cleaned at any 4°C store! (They said it's always free *ˊᵕˋ*) With case → Purchase as is ○ Instant purchase ○ Without case → 1000 yen off! Please comment. Although not pictured, the shopping bag, necklace, and warranty card will definitely be included. #4°c #4℃ #necklace