Wondering if these large beads are Chinese or American turquoise. They are old.
Hubei from China. Here are a couple of links of Hubei for sale today. I don’t know enough to say that these price ranges reflect fair value for these examples. Both ads state stone is natural which brings higher prices. Your pieces appear to me to have some stabilization but I’m not an expert. I have heard it stated many types of Hubei is Natural High-Quality but do not know what category your stones fall into.