Beautiful bracelet! 
Super cool bracelet! I’ve never seen a sandcast with a stone that big!!!
Welcome to the forum. It is a Navajo sandcast bracelet. This style has been made for decades and hard to determine age. The bezel looks to be supply store which helps. You would be safe saying circa 1980s. Possibly a piece of Pilot Mountain Turquoise.
Thank you, Jason. Under loupe it appears to be a hand cut sawtooth bezel as there are imperfections and variation in the pattern. The turquoise is porous and has not been stabilized, which leads me to believe that it is older. Good call on the Pilot Mnt mine…I had narrowed it down to Nevada, but that looks like a close match. This was part of a serious collectors lot with many old and rare pieces…so I am hoping that it is far older than the 80s, but Native American jewelry is not my area of expertise. Really appreciate your feedback.