Info on this Navajo necklace

Can anyone tell me anything about this necklace? I purchased it as a gift for my mom. I’m thinking that’s it’s Navajo, hand made and hand stamped. Maybe from the 80’s? And possibly Kingman or Sleeping Beauty turquoise? There is no hallmark unless the two stamp marks at the top on the back (look to be part of the design) are actually hallmarks. I would love to hear if the experts on here agree and approximate value. Thanks!


It is Navajo, Sleeping Beauty Turquoise, don’t believe it is that old, you can purchase these new around $150. I don’t see anything that looks like a hallmark to me.

Thanks Jason! You are always so helpful!