Genuine old stock Ithaca peak high blue turquoise handmade sterling silver ring size 9

genuine old stock Ithaca peak high blue Kingman turquoise gemstone is set in a handmade sterling silver statement ring size 9
I cut and polished the turquoise gemstone from rough material that came out of the mine in the 1950's They didn't get much of this high grade material during that period of high production
the turquoise is 17x15mm and 6.5 carats
comes with black velvet gift box