I wore this once and have kept it in storage since. The stones are chalcedony and baby pearls. It's convertible, so you can combine it with the bracelet to make it long, changing the look and allowing for various styles (see photo 5). The top can be removed and attached to other chains. I bought it at a department store brand shop for around 8,000 yen, but I've forgotten the brand name. Size: Necklace: Approximately 45cm Bracelet: Approximately 20cm