O-stone Obsidian Eight Diagrams Yin and Yang Pendant Necklace Grounding Stone Protection Amulet We select the finest natural gem stone across the globe Each piece of jewelry is exquisitely handcrafted and polished by our most skilled masters. Together with the jewelry we present you delicate brocade box,exquisite brocade bag,spare string and crystal clean cloth. The packages of different colors are randomly assorted. Certain stone treatment techniques are adopted to improve the looking