Need Help with Green Necklace

Hopefully the pictures are good enough!?
She weighs about 92 grams & is stamped “O B” on the back.
I’m wondering what it is, who made it & what it’s worth??
The last pic seems to show the “true” color best…
Thanks in advance for any info!

That is a big pendant. It is a piece of stabilized turquoise. The leaves that surround the stone are manufactured leaves. I would call this 1980s - 90s. It is Navajo made. The stone is going to be lots of carats, I would think you would see something like this around $250 - $300. Thanks for sharing.