Turquoise/Coral Necklace

I made this in 1986 under the guidance of the Navajo “Grandmas” where I worked in AZ.
The process was very educational. I was shown a completed necklace. Then given all the materials to make the necklace. I had to make an exact duplicate of what I was shown.
Met with the Grandmas weekly for evaluation of progress. Sometimes, was told to remove certain items and try again.
Was able to complete the necklace in about 5 weeks.

It is still one of my favorite pieces.
Am looking for suggestions on insurance value.

I forgot to take a photo of the clasp area. The necklace has one of the basic, barrel twist type clasps. There are two 1.25" sterling cones next to the clasp.

The Grandmas told me that the Turquoise was from Kingman and Sleeping Beauty mines.

The round, red beads are ceramic.

The coral branches are natural, red coral, not dyed bamboo coral.

Length: 22"
Length of longest coral branches: 2.25"

Any thoughts on value would be appreciated. Also, if anyone can confirm or refute the Turquoise.

Thank you