These are fine Chinese 6-7mm turquoise heishi beads. The wonderful color of these Chinese turquoise beads is 100% natural. These turquoise beads have been stabilized, but not dyed or enhanced. This semi precious gemstone is said to be the stone of communication, helping those who have a fear of public speaking. In the same vein, turquoise is considered to be a stone of friendship, strengthening the bond between friends. These turquoise beads are very limited!!!