I custom cut this focal bead out of genuine turquoise from the Kingman mine in Arizona. It has been stabilized but it has not been color treated. Dimensions are in the listing title in millimetres. 2.5mm drill hole. CHAIN NOT INCLUDED. I bought a little over a pound of this turquoise as rough from a very reputable dealer at the trade shows in Tucson a few years ago and this is from the last of it. Check out the rest of my listings for more focal beads, pendants, cabochons, and specimens in many varieties other gemstones and upcycled material like Fordite.