This is a necklace I received as a gift. It's characterized by its beautiful green color, but I don't know much about it and can't identify the type. I'd like to pass it on to someone who is knowledgeable about such things or who likes this kind of necklace. It's new and unused, but there's a slight mark on the box where a sticker was removed. Please be aware of this. The necklace itself is 80 cm long, which is a bit long.