This is a necklace from Vendome Aoyama. 【Materials】 • London Blue Topaz • Mother of Pearl • K18 Pink Gold (chain) 【Product Name】 Blue Topaz Shell Necklace 【Product Number】 AGAN630750B2 The chain has a sliding bead, allowing for length adjustment. The pendant is not fixed to the chain and slides. Warranty card and case are included. Purchase Date: 2017.9.13 Purchased at: Vendome Aoyama, Tobu Ikebukuro Store Current retail price: 187,000 yen It is also listed on the official website, so please take a look if you like. Used approximately 10 times. I believe it is in beautiful condition with no noticeable scratches or stains. Vendome Aoyama offers free cleaning services. No comment, immediate purchase OK.