The pendant is 925/sterling silver, has a ruby stone with natural imperfections, and etched detailing. The pendant is paired with a 925 silver delicate box chain with a spring ring clasp. The chain can be swapped if preferred. Preowned. In great condition. The chain is stamped ADI for Amsterdam Diamond - Aahus/Lystrup. ADI is the Danish company where the sterling silver originated from. Please message the seller if you need more information. All items will be carefully cleaned and packaged in gift boxes before shipment.