I bought this about 40 years ago from a handmade shop at Sunset Beach in Hawaii. Necklace Clasp: Sterling silver 925 stamped Length: Approximately 60cm (5cm adjuster) Adjustable. Bracelet: Approximately 20cm braided cord Brooch: Approximately 6cm wide, 9cm long The brooch and bracelet are free gifts from the local shop. I am an amateur, so I don't know the details. Please check the photos. Please understand that this has been stored at home. No box.