Help on Turquoise Pendant, please. Value & any specifics. TY!

Considering selling this pendant. I don’t wear it. It’s hallmarked Jane Popovich Prices online are all over the place so I would like to get a value. Also, an idea of what type of turquoise it might be would help. And I guess an approximate age or era?

Thank you in advance.

I think of this as $70ish, Kingman turquoise.