Natural Stone 20" Adjustable Necklace

Hello, up for sale, one Natural Stone necklace. This is on a silver tone chain in great pre-owned condition. This is adjustable and can be worn at 20",15" or 13". 100% Natural Stone Check out photos. I didn't test for silver, and there are no markers marks. I also have another Jadeite type necklace I'm currently getting an evaluation on but will be selling soon. Thanks!