I received this as a gift, so I don't know the purchase date or model number, but after checking the engraving, it appears to be the same model as the "1837™ Circle Pendant" listed on the Tiffany & Co. official website. The current retail price is ¥53,900 (including tax). Engraved with "T&CO" and "925". Includes paper bag and pouch. No box. (Please let me know if you don't need the paper bag, etc.) For this listing, it has been cleaned at a Tiffany & Co. store. I will also include the silver polishing cloth I received during the cleaning. I am open to price negotiations, but I may not be able to meet your desired price.